Astro Boy

Orrin (voice)

Zog (voice)

Grace (voice)

Zane (voice)

President Stone (voice)

Cora's Mom (voice)

Cowboy Robot (voice)

Dr. Elefun / Robotsky (voice)

General Heckler (voice)

French Waiter Robot (voice)

Hamegg (voice)

"Our Friends" Narrator (voice)

Widget (voice)

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

Bride to Be (voice)

Dr. Tenma (voice)

Sludge (voice)

Astro / Toby (voice)

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

Mr. Moustachio / Burning Robot (voice)

Mike the Fridge (voice)

Billy (voice)

Press Secretary (voice)

Metro City Sergeant (voice)

Cora (voice)

Sparx (voice)

Trashcan (voice)