Jonathan Todd Ross is an American voice actor and writer known for his extensive work in anime dubbing and audiobook narration. Born on May 30, 1978, in Chicago, Illinois, he began his career in the early 2000s and became prominently associated with productions by 4Kids Entertainment, Central Park Media, and Media Blasters. A graduate of the NYU/Tisch School of the Arts, Ross has built a multifaceted career that spans animation, on-screen acting, and voice work for video games.

Ross is perhaps best known for his iconic role as the villainous Marik Ishtar and his darker alter-ego Yami Marik in the immensely popular Yu-Gi-Oh! anime series, a performance that remains his most recognized work. He reprised variations of this character in related projects, such as the series Yu-Gi-Oh! GX, where he voiced Slade Princeton and Jagger Princeton, and in video games like Yu-Gi-Oh! Capsule Monster Coliseum and Yu-Gi-Oh! Duel Links. Beyond the world of dueling monsters, his anime filmography is extensive and diverse. For the 4Kids adaptation of One Piece, he provided the voices for Kohza and Ben Beckman. He has also had roles in the Pokémon anime, portraying characters such as Tommy, Robin, and Watt. Other notable credits include appearances in Sonic X, Genshiken, and the 2021 version of Shaman King, in which he voiced the character Kalim. His voice work also extended to Western animation, including roles in Teenage Mutant Ninja Turtles and Winx Club.

In addition to his success in animation, Ross has garnered significant acclaim for his work as an audiobook narrator, with over 400 narrations to his name across a wide array of genres, from fiction and biography to children's literature and self-help. His skill in this medium has been recognized with numerous prestigious awards. He won an Audie Award for his narration of Restart by Gordon Korman and has received multiple Earphone Awards and YALSA selections for works such as Swindle and Fake Mustache. His narrations have also been named AudioFile Books of the Year, including for Little Failure by Gary Shteyngart.

Throughout his career, Ross has been a recurring presence at anime conventions as a guest, reflecting his enduring popularity within the fan community. He has been married to author Brigit Young since 2013.