Astro / Toby (voice)
Cora (voice)
Hamegg (voice)
Orrin (voice)
Sparx (voice)
Dr. Elefun / Robotsky (voice)
President Stone (voice)
"Our Friends" Narrator (voice)
Dr. Tenma (voice)
Widget (voice)
Sludge (voice)
Zog (voice)
Mr. Squirt / Math Cowboy / Boxer Robot (voice)
Mr. Squeegee / Scrapheap Head / Stinger Two (voice)
General Heckler (voice)
Grace (voice)
Cora's Mom (voice)
Trashcan (voice)
Zane (voice)
Mr. Moustachio / Burning Robot (voice)
Mike the Fridge (voice)
The Little Stinker (voice)
"Oh No!" Kid (voice)
Dr. Pigknuckle / Newscaster (voice)
