Siêu nhí Astro

Charlize Theron

"Our Friends" Narrator (voice)

Elle Fanning

Grace (voice)

Samuel L. Jackson

Zog (voice)

Nicolas Cage

Dr. Tenma (voice)

Kristen Bell

Cora (voice)

Bill Nighy

Dr. Elefun / Robotsky (voice)

Alan Tudyk

Mr. Squeegee / Scrapheap Head / Stinger Two (voice)

Freddie Highmore

Astro / Toby (voice)

Eugene Levy

Orrin (voice)

Donald Sutherland

President Stone (voice)

Dee Bradley Baker

Trashcan (voice)

Nathan Lane

Hamegg (voice)

Madeline Carroll

Widget (voice)

David Alan Grier

Mr. Squirt / Math Cowboy / Boxer Robot (voice)

Max Burkholder

Billy (voice)

Matt Lucas

Sparx (voice)

Moisés Arias

Zane (voice)

Ryan Stiles

Mr. Moustachio / Burning Robot (voice)

Nicholas Guest

French Waiter Robot (voice)

Sterling Beaumon

Sludge (voice)