Steven Yeun – Voice Actor Profile & Notable Roles

Steven Yeun, born December 21, 1983, in Seoul, is a Korean-American voice actor renowned for his versatile, emotionally resonant performances. This celebrated actor voices Keith in Voltron: Legendary Defender, Avatar Wan in The Legend of Korra, and Little Cato in Final Space, showcasing his range across epic animated franchises. His career-defining role as Mark Grayson in Invincible (2021–present) has captivated audiences with raw intensity and vulnerability, cementing his reputation as a powerhouse voice actor. Recently, he joined Paramount's upcoming animated Avatar film, reuniting with the beloved universe.