Ellyn Stern is an American voice actress and voice director with a career spanning several decades in animation, video games, and film. Her work in English-language dubs of Japanese anime constitutes a significant portion of her professional credits, and she is also known for her frequent collaborations with her husband, fellow voice actor Richard Epcar.

Stern began her performing career on stage at the age of twelve, with theatre credits that include productions of Les Misérables, Mrs. Warren's Profession, and a performance in The Two Noble Kinsmen at the Globe Theatre in Los Angeles. This foundation in live performance preceded her extensive work in voice-over.

In the realm of anime, Stern has portrayed a wide array of characters. She is well-known for voicing Masaki Kurosaki, the mother of the protagonist, in the long-running series Bleach, a role she has reprised for later installments including Bleach: Thousand-Year Blood War. Another prominent role is Martha Vist Carbine in the Mobile Suit Gundam Unicorn series. She has also lent her voice to characters in Noein as Miyuki Goto, in MÄR as Jack's mother, and in Ghost in the Shell 2: Innocence as Haraway. Her filmography includes a role in the Academy Award-winning animated film Belle, where she voiced the character Okumoto.

Her work is notably prominent within the Lupin III franchise. Stern has provided voices for numerous characters across the series, including Marguerite Tiffany and Laura Jaws in Lupin III Part II, and Elena Gotti in Lupin III Part IV. As specified by the user, she voiced Masae Todo and Yao Bikuni in the 2011 television special Lupin the 3rd: Blood Seal of the Eternal Mermaid. This special also serves as an example of her recurring professional partnership with Richard Epcar, who directed the English dub and voiced the character Daisuke Jigen.

In the Pokémon franchise, Stern voiced the character Agatha, an Elite Four member specializing in Ghost-type Pokémon, in the 2016 web series Pokémon Generations. Her involvement in this series also extended behind the microphone, as she served as the voice director for the project.

Beyond acting, Stern has an extensive career as a voice director and ADR script writer. Her directing credits are numerous and include work on various Lupin the 3rd movies and series, as well as Netflix productions such as Kitz and The Welcome Home School. One of her most distinguished achievements in this field was directing the Navajo-language dub of Star Wars: Episode IV – A New Hope, a historic project notable for being the first time a feature film was dubbed into a Native American language.

In addition to her voice work, Stern is an author of the children's book It's Hard To Give A Butterfly A Hug and has written, produced, and starred in the sitcom Life's A Bitch. She is a member of the Classical Theatre Lab and an executive member of Women In Film.