Allegra Clark is an American voice actress born in New York City on July 11, 1988, who has built a prolific career in anime and video game voiceover since 2014. She is a trilingual artist, fluent in English, French, and Italian, a skill she developed from a young age while appearing in commercials and school plays in both English and French. Clark's path to voice acting began during her time at Northwestern University, where she studied theatre and Italian literature and discovered her aptitude for voice and accent work.

Clark's entry into the industry is notably tied to her fandom; she was a dedicated fan of the Dragon Age series and considers being cast as Josephine in Dragon Age: Inquisition (2014) her "big break". While she is highly sought-after for video games, voicing iconic characters like Bloodhound in Apex Legends, Dorothea in Fire Emblem: Three Houses, and Beidou in Genshin Impact, her body of work in anime is equally extensive.

Her anime filmography is diverse, encompassing a wide range of characters across many popular series. She is known for her roles in long-running fantasy epics, such as Derieri and Matrona in multiple installments of The Seven Deadly Sins, including Dragon's Judgement and Imperial Wrath of The Gods, Aishela in Record of Grancrest War, and Ylva in Vinland Saga. In the action-packed world of Jujutsu Kaisen, she voices both Maki Zen'in and Kasumi Miwa, bringing to life the determined and skilled sorcerers. She also provided the voice for Maki in the film Jujutsu Kaisen 0.

Her versatility extends to science fiction and unique premises, as seen in her roles as Pitohui in Sword Art Online Alternative: Gun Gale Online, Noel Niihashi in Burn the Witch, Elizabeth in Vivy -Fluorite Eye's Song-, and Sister Ivry in Edens Zero. She has also made significant contributions to the Fate franchise, voicing characters such as Atalante, a child Gilgamesh, Reines El-Melloi Archisorte, and Semiramis across various series including Fate/Apocrypha, Fate/Grand Carnival, and Lord El-Melloi II's Case Files. Other notable roles include Gin Akutagawa in Bungo Stray Dogs, Sonia in Pokémon: Twilight Wings, Barbara in The Promised Neverland, a White Blood Cell (1196) in Cells at Work! Code Black, Vania in I've Been Killing Slimes for 300 Years and Maxed Out My Level, Elaine Bluelake in To the Abandoned Sacred Beasts, Agatha in Sirius the Jaeger, Chii in The Wonderland, Miroslava Honebami in Kakegurui, Haruka Seri in A.I.C.O. -Incarnation-, Haruka Ogasawara in Sound! Euphonium The Movie, Asamoto in Megalobox 2: Nomad, and Kaela Yoshinaga in B: The Beginning Succession.

Throughout her career, Clark has demonstrated a talent for portraying characters with strength and complexity, often taking on roles that require a commanding presence or deep emotional range. Her performance as Maki Zen'in has been particularly noted for capturing the character's vulnerability and simmering rage. Her work has been recognized within the industry; in 2018, she won the Breakthrough Voice Actress of the Year award at the BTVA Voice Acting Awards. Her prominence in the field is further evidenced by her being named a guest of honor at major conventions like Otakon in 2025.