Suggestions by @pantsguy500

Tress MacNeille

as Missy in Johnny Test (Fully American Voice Cast)

Tress MacNeille

as Lolo in Johnny Test (Fully American Voice Cast)

Carlos Alazraqui

as Albert in Johnny Test (Fully American Voice Cast)

James Arnold Taylor

as Mr. Mittens in Johnny Test (Fully American Voice Cast)

Bill Mondy

as Brain Freezer in Johnny Test (Fully American Voice Cast)

Matthew Mercer

as Gil Nexdor in Johnny Test (Fully American Voice Cast)

Laura Bailey

as Sissy Blakely in Johnny Test (Fully American Voice Cast)

Carlos Alazraqui

as The General in Johnny Test (Fully American Voice Cast)

Kevin Michael Richardson

as Mr. White in Johnny Test (Fully American Voice Cast)

Bill Mondy

as Mr. Black in Johnny Test (Fully American Voice Cast)

Jeff Bennett

as Hugh Test in Johnny Test (Fully American Voice Cast)

Kath Soucie

as Lila Test in Johnny Test (Fully American Voice Cast)

Laura Bailey

as Mary Test in Johnny Test (Fully American Voice Cast)

Kari Wahlgren

as Susan Test in Johnny Test (Fully American Voice Cast)

Tom Kenny

as Dukey in Johnny Test (Fully American Voice Cast)

James Arnold Taylor

as Johnny Test in Johnny Test (Fully American Voice Cast)

Charlie Schlatter

as Donnie Turnbull in Robotboy (American Voice Cast)

James Sie

as Constantine in Robotboy (American Voice Cast)

Randall Duk Kim

as Dr. Kamikazi in Robotboy (American Voice Cast)

Tom Kenny

as Gilbert in Robotboy (American Voice Cast)