Astro Boy

Freddie Highmore Astro / Toby (voice)

Kristen Bell Cora (voice)

Nathan Lane Hamegg (voice)

Eugene Levy Orrin (voice)

Matt Lucas Sparx (voice)

Bill Nighy Dr. Elefun / Robotsky (voice)

Donald Sutherland President Stone (voice)

Charlize Theron "Our Friends" Narrator (voice)

Nicolas Cage Dr. Tenma (voice)

Madeline Carroll Widget (voice)

Sterling Beaumon Sludge (voice)

Samuel L. Jackson Zog (voice)

David Alan Grier Mr. Squirt / Math Cowboy / Boxer Robot (voice)

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

Newell Alexander General Heckler (voice)

Elle Fanning Grace (voice)

Pilar Flynn Cora's Mom (voice)

Dee Bradley Baker Trashcan (voice)

Moisés Arias Zane (voice)

Ryan Stiles Mr. Moustachio / Burning Robot (voice)