What co-star of "All That" also had a role in "Grand Theft Auto V"?
All That Live!:  The Season 5 cast included, in alphabetical order: Amanda Bynes, Leon Frierson, Christy Knowings, Kel Mitchell, Josh Server, Danny Tamberelli, and Kenan Thompson with featured members Nick Cannon and Mark Saul. Danny Tamberelli:  He is best known for his roles as Arnold Perlstein in "The Magic School Bus", Little Pete in "The Adventures of Pete and Pete" and Jimmy De Santa in "Grand Theft Auto V".
Danny Tamberelli