The Simpson: Yellow Planet

Dan Castellaneta

Homer Simpson / Kodos / Krusty el Payaso / Sideshow Mel

Julie Kavner

Marge Simpson / Patty Bouvier / Selma Bouvier / Jacqueline Bouvier

Nancy Cartwright

Bart Simpson / Nelson Muntz / Maggie Simpson / Ralph Wiggum / Kearney Zzyzwicz / Rod Flanders / voces adicionales

Yeardley Smith

Lisa Simpson

Hank Azaria

Kirk Van Houten / Moe Szyslak / Comic Book Guy / Gary Chalmers / Snake Jailbird / Professor Frink / Blubbo's Trainer

Harry Shearer

Principal Skinner / Kang / Lenny Leonard / Reverend Lovejoy / Rainier Wolfcastle / Ned Flanders

Hugh Bonneville

Narrador

Pamela Hayden

Milhouse Van Houten / Jimbo Jones / Todd Flanders

Tress MacNeille

Dolph Shapiro / voces adicionales

Kevin Michael Richardson

Morgan Freeman / Narwhal Wrapped in Plastic