Characters played by Christine Cavanaugh
Dexter
D22
Old Man Dexter
Characters played by Eddie Deezen
Mandark
Executive Mandark
Overlord Mandark
Braindark
Characters played by Jeff Bennett
Action Dexter
Mandark Robot
Dad
Robot #1
Officer 9412
Characters played by Kath Soucie
Mom
Head Secretary
Characters played by Kat Cressida
Dee Dee
Characters played by Tom Kenny
Curator
Village Man
Robot #2
Computer
Man