Christine Cavanaugh

Dexter / D22 / Old Man Dexter (voice)

Eddie Deezen

Mandark / Executive Mandark / Overlord Mandark / Braindark (voice)

Jeff Bennett

Mandark Robot / Dad / Robot #1 / Officer 9412 (voice)

Kath Soucie

Mom / Head Secretary (voice)

Kat Cressida

Dee Dee (voice)

Tom Kenny

Curator / Village Man / Robot #2 / Computer / Man (voice)