Eiko Masuyama

2.1. Childhood and Education

Eiko Masuyama was born Tomoko Masada on April 22, 1936, in Ebara, Shinagawa, Tokyo, as the youngest of four sisters. During her childhood, Masuyama spoke slowly, a trait that led to a teacher's comment, "You can't talk properly," causing her to develop an inferiority complex about her speech. At the age of 12, seeking to overcome this challenge, she joined the Shin Jido Theater Company, now known as Gekidan Shin Jido. There, she received guidance from Miyoko Asō, which helped her to improve her speaking abilities and naturally sparked her interest in acting. Before pursuing acting, Masuyama had aspired to become a ballerina and took ballet lessons to prepare for entrance exams. However, she was forced to abandon this dream at the age of 12 due to a lung illness. She graduated from Rissho Gakuen High School.

2.2. Early Acting Career

After outgrowing the children's theater company at age 15, Masuyama, along with fellow actors Sandayū Dokumamushi, Yasushi Inayoshi, Kaei Kage, Haruko Kitahama, and Mitsuko Toyohara, established the "Gekidan Sanno" theatrical company. Several years later, she and Kaei Kage were invited to join the Shiki Theatre Company by its director, Keita Asari, who needed more actresses. During her time with Shiki, Masuyama began to take on roles in television and dubbing foreign dramas, which gradually drew her interest towards voice work. The irregular schedules of television and the demanding rehearsal times for stage productions became increasingly difficult to manage due to personal time constraints, leading her to consider a shift in her career focus.

3.1. Transition to Voice Acting

Masuyama made a conscious decision to concentrate solely on voice acting, primarily to better balance her professional life with her family responsibilities and childcare. Voice acting offered more flexible hours compared to the unpredictable schedules of television dramas and the rigorous rehearsal demands of stage performances. She initially worked through the Takamatsu Riyuko Office before joining Aoni Production in the 1960s, where she remained a long-term and prominent member.

3.2. Agency Affiliation

Eiko Masuyama joined Aoni Production in the 1960s, becoming a key and enduring member of the agency. She remained affiliated with Aoni Production until her death, underscoring her long and dedicated tenure with the company.

3.3. Work Philosophy and Approach

Masuyama's voice was characterized as an "elegant and passionate mezzo-soprano," enabling her to portray a wide range of characters from young girls to mature women. While she often took on seductive roles, she was equally adept at voicing kind mothers. In a 2005 interview, she noted that she frequently played characters younger than her actual age, humorously suggesting she felt she could "stay young forever." She also admitted to struggling with maintaining the necessary vocal pitch for her younger characters as she aged.

Masuyama was a prolific singer of anime songs, often collaborating with composer Seiichiro Uno, whom she met during her work on Hyokkori Hyotan-jima. Initially surprised by these opportunities, she later recalled them as "very happy" experiences. In her dubbing work, she frequently appeared in Hanna-Barbera productions and was particularly known for consistently dubbing actress Lee Remick. Masuyama found Remick easy to voice, noting a similarity in their demeanor and physical structure. She was especially moved by her work on Days of Wine and Roses, describing it as a very rewarding experience.

Regarding her professional approach, Masuyama firmly believed that "the picture is the protagonist" in animation voice work, asserting that the voice perfectly aligns with the visuals. She expressed a dislike for being asked to voice characters without accompanying visuals, as she felt her various character voices might become muddled without the visual context. Her preferred method for character development involved creating her own interpretation first, then presenting it to the director for feedback and advice, rather than receiving detailed instructions from the outset.

Masuyama was critical of the practice of recording anime without complete animation visuals. She recounted instances where a scene intended to have laughter was left silent because the animation wasn't finished, or her acting didn't match the final visuals, leading to viewer complaints. To avoid such issues, she sometimes insisted on having visuals during recording sessions, stating, "I don't want to be embarrassed" and "I want the picture at the time of recording."

In her later years, Masuyama generally preferred not to appear on camera. She explained that she wished to preserve the youthful image of her iconic characters, such as Honey and Fujiko, for her audience. While she declined full on-camera appearances, she made exceptions, such as for the program Daitan MAP, where she agreed to be filmed from a distance during a recording session. Similarly, for an interview on NHK BS Premium's Second no Bigaku in 2019, she participated on the condition that her face would not be shown.

4.1. Fujiko Mine

Masuyama is most widely recognized for her extensive portrayal of Fujiko Mine in the Lupin the Third franchise. She voiced Fujiko from the second television series, Lupin the Third Part II, which began in 1977, until Miyuki Sawashiro took over the role in 2011.

Her connection to the character began even earlier, as she originally voiced Fujiko in the two Lupin the Third Pilot Films produced in 1969 and 1971. Although she was initially slated to continue the role for Lupin the Third Part I, she was replaced by Yukiko Nikaido before the series aired. Director Masaaki Osumi later explained that Masuyama found it difficult to perform the more "sexy scenes" required for the character at the time. Despite this, Masuyama made a guest appearance in Part I, episode 14, "The Secret of the Emerald," as Catherine Martin, sharing a scene and dialogue with Nikaido's Fujiko.

Masuyama's strong desire to reclaim the role led her to audition for Lupin the Third Part II, for which Nippon Television had requested a change in Fujiko's voice actress. Upon her return, she faced initial backlash, receiving numerous letters of protest from viewers who questioned why Nikaido was no longer voicing the character. Masuyama, undeterred, resolved to perform the role in her own distinct style, acknowledging that she could not simply imitate Nikaido.

She often spoke of Fujiko as a woman embodying "all ideals," expressing her continuous admiration for the character. Masuyama observed that Fujiko had an overwhelmingly female fanbase. She also expressed affection for Lupin's unwavering devotion to Fujiko, even when she betrayed him, finding it to be a "cute" male trait.

When portraying Fujiko, Masuyama consciously aimed for a "healthy sexiness," believing that Fujiko's allure stemmed more from the visual design and her actions as a "tool or weapon" rather than an inherent, overt sensuality in her dialogue. She found the character's changing designs across different works, which required her to adapt her performance, to be engaging, likening it to a thief who constantly changes tactics and disguises.

Among the Lupin works she voiced, Masuyama held Lupin the 3rd: The Castle of Cagliostro as particularly memorable. She felt that Fujiko's bravery in the film might represent her "true self" or the character's fundamental core. She also cited her fondness for the scene where Fujiko responds to Clarisse's question, "Were you abandoned?" with "No, I left him."

Following the death of original author Monkey Punch in 2019, Masuyama shared her gratitude, stating, "An actor's encounter with a work is everything. I am grateful to Monkey Punch-sensei for letting me meet 'Fujiko Mine,' which became my treasure." After the passing of Kiyoshi Kobayashi, the voice of Daisuke Jigen, in 2022, Masuyama was the last surviving main cast member from the era of Lupin the Third Part II, which included the highly acclaimed Lupin the 3rd: The Castle of Cagliostro.

4.2. Bakabon's Mama

Another of Masuyama's signature roles was Bakabon's Mama in the Tensai Bakabon series. This manga has been adapted into a television anime five times, and remarkably, Masuyama consistently voiced Bakabon's Mama from the first series up to the fourth, Rerere no Tensai Bakabon, even as other main cast members changed. This continuity was a specific request from the original author, Fujio Akatsuka, who explicitly stated that his only wish for the fourth TV adaptation was for Masuyama to remain as Mama's voice. The only instance of a substitute voice actress for Mama was Haruko Kitahama in episode 70 of the first series, "Papa and Mama Had a Fight." (After Akatsuka's death, Noriko Hidaka took over the role in Shinya! Tensai Bakabon).

As a mother in her personal life, Masuyama found it natural and effortless to portray the character of Bakabon's Mama. She recalled feeling an immediate connection to the role, thinking, "I'm absolutely perfect for this," upon first seeing Mama's character design. She was deeply moved and validated when she visited the Ome Akatsuka Fujio Kaikan (青梅赤塚不二夫会館_{Ōme Akatsuka Fujio Kaikan}^Japanese) and saw Akatsuka's own handwritten comment on a wall, stating, "Mama absolutely must be Masuyama-san." This confirmed to her that her portrayal was truly recognized and appreciated by the original creator.

4.3. Cutie Honey

Eiko Masuyama took on the pivotal role of Honey Kisaragi, the titular character in the original 1973 Cutie Honey anime series. This role marked a significant turning point in her career, as she had primarily voiced cute and innocent characters before. Cutie Honey allowed her to explore a more mature and sensual character. Masuyama later reprised her role as the original Honey in Re: Cutie Honey, which featured a setting where her character came from an alternate world. She also made a guest appearance as Mitsuko Kanzaki in the remake, Cutie Honey Flash. In 2005, reflecting on her return to the character, she commented, "It's simply a joy to have encountered such a wonderful work."

4.4. Other Key Roles

Beyond her most famous characters, Eiko Masuyama's diverse filmography included numerous other significant roles. In the puppet show Hyokkori Hyotan-jima, she voiced Tekke (テケ_Tekke^Japanese), a young boy. She was initially surprised by this casting, expecting a girl's role, but found it unexpectedly enjoyable and later expressed her satisfaction with having taken on the challenge. She also enjoyed playing U-ko (U子_U-ko^Japanese) in Obake no Q-tarō, a character unlike any she had previously portrayed. She humorously recounted that her first line as U-ko supposedly "knocked over" the recording staff, and she considered it a work that allowed her to rediscover the joy of creating new characters and the essence of voice acting.

Other notable roles include:

• Sumire Hoshino / Pako in Perman (second series onwards)
• Professor Kitty in SF Saiyuki Starzinger
• Kaiko-chan in Kaibutsu-kun
• Ann Burning in Linda Cube
• Shioji in Gamba no Bōken (1975)
• Sugal in Arabian Nights: Sinbad's Adventures
• Joan Randall in Captain Future
• Christine Hoprabbit (Hilda, Patty's mom) in Maple Town Stories (episodes 42-45)
• Princess Snow Kaguya in Sailor Moon S: The Movie
• Fusae Campbell in Detective Conan
• Bloody Mary in X Bomber
• The Eternal Administrator in the Queen Millennia film
• Kasumi Sarutobi in Sasuga no Sarutobi

5.1. Television Anime

• 1963: Eighth Man (Manami); Astro Boy (Lucia, Kipiah, Yumi, Robiet, others)
• 1965: Kimba the White Lion; Super Jetter (Nanae); Prince Planet (Rico)
• 1966: Leo the Lion (Rukio); Harris no Kaze (Kunimatsu's mother); Planet Boy Papi (Berta Helen Andromeda); Sally the Witch (Yumiko)
• 1967: Gokū no Daibōken (Tatsuko)
• 1968: Kaibutsu-kun (1968-1969, Princess Kaiko); Star of the Giants (1968-1971); Sabu to Ichi Torimono Hikae (Otsuru)
• 1969: Attack No. 1 (Yumi Katsuragi, Satomi Yoshimura, Kyoko Makimura, Shelenina [2nd voice], others); Dororo (Chii)
• 1970: Moomin (1970-1972, Temmy, Water Spirit) - 2 series
• 1971: Andersen Monogatari (Canthy); Shin Obake no Q-Tarō (U-ko); Chingo Muchahei; Tensai Bakabon (1971-1972, Mama); Marvelous Melmo (Mother Dog, Secretary)
• 1972: Dokonjō Gaeru (1972-1974, Kyoko's Mama); Devilman (Fiam, Bella); Mahōtsukai Chappy (Chappy); Lupin the Third Part I (Catherine Burgess)
• 1973: Jungle Kurobe (Mama Sarari); Microsuperman; Fables of the Green Forest (Polly); Cutie Honey (1973-1974, Honey)
• 1974: Karate Master; Great Mazinger (1974-1975, Cleo); Vicky the Viking (1974-1975, Narrator); Hoshi no Ko Chobin (Queen Ekurea)
• 1975: Arabian Nights: Sinbad's Adventures (Sugal); Ikkyū-san (Iyo no Tsubone [Mother], Narrator); Ganso Tensai Bakabon (1975-1977, Mama); Gamba no Bōken (Shioji [1st voice]); Shonen Tokugawa Ieyasu (Oda); Laura, the Prairie Girl (Mother); Time Bokan (Luname); Maya the Honey Bee (Jane the Cabbage Butterfly)
• 1976: Divine Demon-Dragon Gaiking (Emeralda); UFO Warrior Dai Apolon (Queen Apolon); Little Lulu and Her Little Friends (Lulu [1st voice]); Candy Candy (Jane Brighton)
• 1977: Jetter Mars (Mayumi); Lupin the Third Part II (1977-1980, Fujiko Mine)
• 1978: Nobody's Boy: Remi; Starzinger (1978-1979, Kitty, Andra); Captain Future (Joan Randall); Haikara-San: Here Comes Miss Modern (Kichiji)
• 1979: Cyborg 009 (Lena, Simone); Japanese Masterpiece Fairy Tale Series: Akai Tori no Kokoro (Wind's Mother); Yakyū-kyō no Uta (Kanako Toma)
• 1980: Galaxy Express 999 (Sylvia, Snow Woman, Neko A); Nodoka Mori no Doubutsu Daisakusen (Melitta); Manga Kotowaza Jiten (Tsugumi); Wakakusa Monogatari (Nissei Family Special) (Meg); Space Warrior Baldios (Amy)
• 1981: Good Morning! Spank (Mama); Kaibutsu-kun (1981-1982, Kaiko-chan); Kaba Enchou no Doubutsuen Nikki (Masaru's Mother); Dogtanian and the Three Muskehounds (1981-1982, Milady)
• 1982: Andromeda Stories (Mother Machine); Urusei Yatsura (Misuzu); The Kabocha Wine (Komachi, Hanae Aoba); Sasuga no Sarutobi (Kasumi Sarutobi); The Mysterious Cities of Gold (Next episode preview narration); Dr. Slump (1982-1986, Ribbon-chan); Patalliro! (Björn); Boku Patalliro! (Afro 18); I Am a Cat (Wife)
• 1983: Story of the Alps: My Annette (Francine Barnier); Cat's Eye (Henriette Lubelle / Lupin's Bride); The Yearling (Twink Hatto); Perman (1983-1985, Pako / Sumire Hoshino, others); Manga Nihonshi
• 1984: Lupin III Part III (1984-1985, Fujiko Mine)
• 1985: Obake no Q-Tarō (TV Asahi version) (1985-1987, U-ko); Haai Akko Desu (Yoko Mizuno)
• 1986: GeGeGe no Kitarō (3rd series) (Tenko, Datsue-ba); Maple Town Stories (Mama [substitute])
• 1987: Lady Lady!! (Magdalene Waverley)
• 1988: Little Lord Fauntleroy (Minna); Bikkuriman (Mataiden Noah); Himitsu no Akko-chan (2nd series) (Queen of the Mirror Country)
• 1989: Gaki Deka (Momoko/Jun's Mother); Lupin the Third: Bye Bye Liberty Crisis (Fujiko Mine)
• 1990: Heisei Tensai Bakabon (Mama); Magical Taruruto-kun (Ina Kawai); Sally the Witch (2nd series) (1990-1991, Witch, Azami's Mother); Lupin the Third: The Mystery of the Hemingway Papers (Fujiko Mine)
• 1991: Mischievous Twins: The Tales of St. Clare's (Mrs. Wentworth); Bakabon Osomatsu no Curry wo Tazunete Sanzenri (Mama); Lupin the Third: Steal Napoleon's Dictionary! (Fujiko Mine)
• 1992: Soreike! Anpanman (1992-2024, Mimi-sensei [2nd voice], Queen of Darkness [1st voice], Witch, Princess Kuroyuki, Aki Kaze-san); Lupin the Third: From Russia with Love (Fujiko Mine)
• 1993: Lupin the Third: Orders to Assassinate Lupin (Fujiko Mine)
• 1994: Lupin the Third: Burning Zantetsuken (Fujiko Mine)
• 1995: Anime Sekai no Dowa (Queen [Stepmother]); Lupin the Third: Farewell, Lady Liberty (Fujiko Mine)
• 1996: Lupin the Third: The Secret of Twilight Gemini (Fujiko Mine)
• 1997: Cutie Honey Flash (Mitsuko Kanzaki); Lupin the Third: Walther P38 (Fujiko Mine)
• 1998: Mamotte Shugogetten (Meihua); Lupin the Third: Crisis in Tokyo (Fujiko Mine)
• 1999: Lupin the Third: Love's Da Capo ~FUJIKO'S Unlucky Days~ (Fujiko Mine); Rerere no Tensai Bakabon (1999-2000, Mama)
• 2000: Lupin the Third: 1$ Money Wars (Fujiko Mine)
• 2001: Detective Boy Kageman (Beauty Face [1st voice]); Lupin the Third: Alcatraz Connection (Fujiko Mine)
• 2002: Weiß Kreuz Glühen (Queen); Lupin the Third: Episode:0 First Contact (Fujiko Mine)
• 2003: Lupin the Third: Operation Return the Treasure (Fujiko Mine)
• 2004: Lupin the Third: Stolen Lupin ~The Summer Butterfly's Secret~ (Fujiko Mine)
• 2005: Detective Conan (Fusae Campbell Kinoshita); Lupin the Third: Angel's Tactics ~A Piece of a Dream is the Scent of Murder~ (Fujiko Mine)
• 2006: Lupin the Third: Seven Days Rhapsody (Fujiko Mine)
• 2007: Lupin the Third: The Elusiveness of the Fog (Fujiko Mine)
• 2008: Lupin the Third: Sweet Lost Night ~Magic Lamp is a Premonition of Nightmare~ (Fujiko Mine)
• 2009: Lupin the 3rd vs. Detective Conan (Fujiko Mine)
• 2010: Lupin the 3rd: The Last Job (Fujiko Mine)

5.2. Anime Films

• 1968: Andersen Monogatari (Karen)
• 1969: Hitoribocchi (Ken's Mama)
• 1970: Attack No. 1 (Yumi Katsuragi); Attack No. 1: Tears of the Spinning Receive (Satomi Yoshimura); Attack No. 1: Tears of the World Championship (Shelenina); Yasei no Pornorama: Yacchimae!! (Park's exhibitionist, Car customer, Airport blonde woman); Gentle Lion (Mukumuku)
• 1971: Attack No. 1: Tears of the Phoenix (Midori Hayakawa); Animal Treasure Island (Gran)
• 1976: Puss in Boots Around the World (Susanna)
• 1977: The Wild Swans (Elisa / Adult Elisa)
• 1978: Lupin the 3rd: The Mystery of Mamo (Fujiko Mine)
• 1979: Lupin the 3rd: The Castle of Cagliostro (Fujiko Mine)
• 1980: Toward the Terra (Terraz No. 5)
• 1981: Kaibutsu-kun: Invitation to Monsterland (Kaiko-chan)
• 1982: Kaibutsu-kun: Demon's Sword (Kaiko-chan); Queen Millennia (Eternal Administrator); Dr. Slump: Hoyoyo! Space Adventure (Ribbon-chan); Arcadia of My Youth (Witch)
• 1983: Dr. Slump: Hoyoyo! The Great World Tour Race; Manga Aesop Monogatari (Goddess of Spring)
• 1984: The Kabocha Wine: Nita's Love Story (Komachi); Shonen Kenya (Yoko Murakami); Ninja Hattori-kun + Perman: Chounouryoku Wars (Pako)
• 1985: Tongari Bōshi no Memoru (Narrator); Ninja Hattori-kun + Perman: Ninja Monster Jippou vs. Miracle Egg (Pako); Penguin's Memory: Shiawase Monogatari (Susan); Lupin the 3rd: Legend of the Gold of Babylon (Fujiko Mine)
• 1990: Kensuke-sama (Kensuke's Mother)
• 1994: Sailor Moon S: The Movie (Princess Snow Kaguya); Soreike! Anpanman: Lyrical Magical School (Witch)
• 1995: Lupin the 3rd: Farewell, Nostradamus (Fujiko Mine)
• 1996: Lupin the 3rd: Dead or Alive (Fujiko Mine)
• 2003: Pa-Pa-Pa The Movie Perman (Pako)
• 2004: Pa-Pa-Pa The Movie Perman: Tako de Pon! Ashi ha Pon! (Pako)

5.3. Original Video Animations (OVAs)

• 1969: Lupin the Third Pilot Film (Cinemascope version) (Fujiko Mine)
• 1971: Lupin the Third Pilot Film (TV version) (Fujiko Mine)
• 1988: Xanadu: Dragon Slayer Legend (Refi)
• 2000: Denshin Mamotte Shugogetten! (Meihua)
• 2002: Lupin the Third: Return of Pycal (Fujiko Mine)
• 2008: Yanase Takashi's Fairytale Theater: Kushara Hime (Witch); Lupin the Third: Green vs. Red (Fujiko Mine)
• 2012: Lupin the Third: Master File (Fujiko Mine)

5.4. Web Animation

• 2021: Ankoku Kazoku Warabi-san (Fuki Okada)

5.5. Video Games

• 1995: Kuusou Kagaku Sekai Gulliver Boy (Tiger); Heisei Tensai Bakabon Susume! Bakabons (Bakabon's Mama); Linda Cube (Ann)
• 1997: Lupin the Third: The Castle of Cagliostro -Reunion- (Fujiko Mine); Lupin the Third Chronicle (Fujiko Mine)
• 1998: How to be a Wizard (El-Senelia)
• 1999: Majokko Daisakusen (Chappy, Honey)
• 2002: Lupin the Third: The Legacy of the Magic King (Fujiko Mine)
• 2003: Lupin the Third: The Lost Treasure in the Sea (Fujiko Mine)
• 2004: Lupin the Third: Columbus's Legacy is Stained Red (Fujiko Mine)
• 2007: Lupin the Third: Death to Lupin, Love to Zenigata (Fujiko Mine); MAPLUS Portable Navi 2 (Navigation voice)
• 2010: Lupin the Third: The Greatest Brain Battle in History (Fujiko Mine)

6.1. Live-Action Works

Masuyama provided voices for numerous live-action films and television dramas. She was particularly known for dubbing actress Lee Remick in multiple films, including Anatomy of a Murder (Laura Manion, NET version), Days of Wine and Roses (Kirsten), The Chase (Kelly Sherwood), The Long, Hot Summer (Eula, NET version), Highway (Jo Jet), and The Big Trail (Cora Masengale).

Other notable live-action dubbing roles include:

• Apache (Nalinle, voiced by Jean Peters)
• The Enforcer (Millie, voiced by Susan Zener)
• The Singing Nun (Sister Ann, voiced by Debbie Reynolds)
• The Children's Hour (NET version)
• Curse of the Demon (Susan Whitley, voiced by Peggy Cummins)
• The Cabinet of Caligari (Jane, voiced by Glynis Johns)
• Up to His Ears (Alexandrine, voiced by Ursula Andress, TBS version)
• Five Weeks in a Balloon (Makia, voiced by Barbara Luna)
• The Miracle (Teresa, voiced by Carroll Baker)
• The Brides of Dracula (Marianne Danielle, Fuji TV version)
• How to Marry a Millionaire (Gretchen, voiced by Fran Jeffries)
• Torpedo Run (Denise, voiced by Anjanette Comer, NET version)
• A Shot in the Dark (Maria Gambrelli, voiced by Elke Sommer, TV Tokyo version)
• Diary of a Wimpy Kid: The Long Haul (Great Aunt, on-demand streaming version)
• Chicago Confidential (Catherine "Kate" Mallory, voiced by Gale Storm, NET version)
• The Great Silence (Scarlett, voiced by Sidney Rome)
• The Dandy in Aspic (Caroline, voiced by Mia Farrow)
• The Killer Elite (Buffy, voiced by Ann Turkel)
• The Silencers (Gail, voiced by Stella Stevens)
• The Ambushers (Francesca, voiced by Senta Berger)
• The Sound of Music (Baroness Elsa von Schraeder, voiced by Eleanor Parker, 1981 soft version)
• The Crazies (Kathy Bolman, voiced by Lynn Lowry)
• Airport '75 (Joan, voiced by Jill Donohue)
• Quartet (Jean, voiced by Mai Zetterling)
• Junior Bonner (Charmagne, voiced by Barbara Leigh)
• The Cincinnati Kid (Christian, voiced by Tuesday Weld, TV Asahi version)
• Susan Slade (Susan Slade, voiced by Connie Stevens)
• Sodom and Gomorrah (Shua, voiced by Rossana Podestà)
• Tarzan's Savage Fury (Jane, voiced by Maureen O'Sullivan)
• The Egg and I (Harriet Putnam, voiced by Louise Allbritton, Fuji TV version)
• The Greatest Show on Earth (Angel, voiced by Gloria Grahame, TV Tokyo version)
• The Great Escape (Gina, voiced by Giovanna Ralli)
• Tom Horn (Glendoline Kimmel, voiced by Linda Evans)
• Drabble (Sheel Burrows, voiced by Delphine Seyrig)
• Warm Current (Sharlo, voiced by Carolyn Jones)
• Butterfield 8 (Emily, voiced by Dina Merrill)
• Harry and the Hendersons (Nancy Henderson, voiced by Melinda Dillon, video version)
• A Spring Affair (Debbie, voiced by Jean Peters)
• The French Ten Commandments (Françoise, voiced by Françoise Arnoul)
• The Benny Goodman Story (Alice Hammond, voiced by Donna Reed)
• North West Mounted Police (Louvette Corbeau, voiced by Paulette Goddard)
• Manhunt (Teresa, voiced by Madolyn Rue, NET version)
• The Unsinkable Molly Brown (Lucretia, voiced by Debbie Reynolds)
• The Missile Base (Victoria Caldwell, voiced by Merry Peach, NET version)
• Mary Poppins (Winifred Banks, voiced by Glynis Johns, Fuji TV version)
• Monty Python's Life of Brian (Judith)
• Going My Way (Carol James, voiced by Jean Heather)

Her television drama dubbing roles include:

• Operation OK 7 (Fizz, voiced by Michael Audleson)
• Bewitched (Aretha, Venus)
• I Dream of Jeannie #71 (Bootsie Nightingale, voiced by Carol Wayne)
• Murder, She Wrote #9 (Trish Langley)
• Star Trek: The Next Generation Season 3 #53 "The Price" (Lieutenant Marla Astor)
• The Fugitive (Karen Christian, voiced by Susan Oliver; Norma Sessions, voiced by Angie Dickinson)
• Miami Vice Season 3 #20 (Christine von Marburg, voiced by Melanie Griffith)
• My Favorite Martian (Angela, voiced by Ann Marshall)
• Judd for the Defense #50 "The Catastrophe" (Helen, voiced by Elizabeth MacRae)
• Nichols (Ruth, voiced by Margot Kidder)

6.2. Animation Works

Masuyama's dubbing work also extended to foreign animated productions:

• The Jetsons (Jane Jetson)
• Fantastic Four (Susie)
• Space Kid (Belgian Broadcasting Company production)
• Hide and Seek (animated film)
• Clara and Max
• Sky Kid Black Baron (Poppy)
• Dora Dora Kitten and Chaka Chaka Girl (Mimi)
• Snoopy and Charlie (Lila)
• The Stick is Fun

6.3. Puppet Shows

• Fraggle Rock (Wingnut)

8.1. Family

Eiko Masuyama was married to Kazuki Masada, a producer at TBS Television who notably created the popular cooking show Ryori Tengoku. Kazuki Masada passed away in 2022. Together, they had a daughter.

8.2. Personal Interests

From a young age, Masuyama was a devoted fan of the Takarazuka Revue, a Japanese all-female musical theater troupe. She even took ballet lessons with the intention of auditioning for the troupe, but her dream was cut short at age 12 due to a lung illness. Her admiration for Takarazuka persisted throughout her life. After her husband's work schedule became more settled, Masuyama lived near the Takarazuka Grand Theater in Takarazuka City for approximately nine years, starting in 2005. During this time, she fostered extensive relationships with Takarasiennes (タカラジェンヌ_{Takarasiennes}^Japanese, Takarazuka performers) and staff across different groups. She was known to cook meals, such as curry, for Takarasiennes living alone, creating a comforting, home-like atmosphere. This earned her the affectionate nickname "Fujiko Mama" among the performers.

Masuyama's early life also included a serendipitous encounter that would shape her career. As a child, while visiting a play with Miyoko Aso's guidance, she saw an actor portraying a prince and was so captivated that she wished to stand on the same stage as him. This actor was Goro Naya, who would later become her long-time co-star as Inspector Zenigata in the Lupin the Third series for nearly 40 years.

Initially, Masuyama performed under her birth name, Tomoko Masada. However, a director named Kazuhiko Hoshino advised her that her real name might not be suitable for her career. He took her to a Takashima Ekidan (a traditional Japanese fortune-telling method, 高島易断_{Takashima Ekidan}^Japanese) practitioner, and she subsequently adopted her professional name, Eiko Masuyama. Among her peers, she was affectionately known as "Tonchi" (トンチ_Tonchi^Japanese). This nickname originated from her two older sisters, who were called "Icchi" and "Kyochi," leading to "Tomoko" being shortened to "Tonchi," a name that then spread among her colleagues.

Masuyama also had a close relationship with fellow voice actress Kikuko Inoue. Inoue became a fan of Masuyama after watching reruns of Attack No. 1 before her debut. After becoming a professional voice actress and joining Aoni Production, Inoue was introduced to Masuyama by Aya Hisakawa, who was also affiliated with the agency. The three often celebrated their birthdays together. Inoue described Masuyama as an "always shining, wonderful person" and "an eternally admired person who gives lots of love."