Tara Strong

Ben Tennyson / Upgrade / Sandra Tennyson / Computer (voice)

Meagan Moore

Gwen Tennyson / Girl Student (voice)

Paul Eiding

Grandpa Max (voice)

Dee Bradley Baker

Stinkfly / Vulpimancers / Carl Tennyson / Cash Murray (voice)

Steve Blum

Heatblast / Mechamorph

Jim Ward

Diamondhead

Richard McGonagle

Four Arms / Ben’s Teacher (voice)

Fred Tatasciore

Way Big / Evil Way Big (voice)

Richard Steven Horvitz

Grey Matter / Dispatcher (voice)