Sean Schemmel never planned on becoming a voice actor; he trained to be a classical French horn player. When a friend persuaded him to audition for Dragon Ball Z, he tried out for a minor character who was going to be killed in the first season of the show. He had been recording for two weeks before he was told that he was going to be the lead.
Since being cast as Son Goku by Funimation in 1999, he has been the most consistent English voice actor for the main protagonist of the Dragon Ball franchise, having voiced the character’s older teen and adult incarnations in every anime series produced to date (Dragon Ball, Z, GT, Kai and Super) and most Dragon Ball animated moviesand video games, as well as other characters such as King Kai and Goku Black.
Besides voicing Goku, Schemmel has lent his voice to several other anime characters including Conrad in Berserk, Amidamaru in Shaman King (2001), Lucario in Pokémon and Elliot Grant in Mew Mew Power. His other roles in animation include Firefly in G.I. Joe: Sigma 6, Gonard in Kappa Mikey and Hawkman in DC Super Friends. In video games, Schemmel has provided his voice to Makuta in Bionicle, Black Doom in Shadow the Hedgehog, Maxwell in Bullet Witch, Horace in Skullgirls, Batman in The Dark Knight Rises, Sun Wukong (whom Goku was originally based on) in Smite, and Marc Wilson in Fallout 4.
In addition to his voice acting career, Schemmel was also an ADR Director and scriptwriter for NYAV Post, where he had directed and adapted for English dubs of several Japanese anime series. In the field of narration, he has won two awards for his audiobook recordings.