Young Johnny is gung-ho and full of courage. Johnny's brainiac twin sisters, Susan and Mary, use Johnny as their guinea pig for their outrageous scientific experiments. If they can dream it up, Johnny will do it; as long as his genetically engineered super dog, Dukey, can come along.
Overview
Creator
Top Billed Cast
View all
Scott McNeil
Mr. White / Bumper (voice) (234 episodes) (5 episodes)
Bill Mondy
Mr. Black (voice) (234 episodes) (1 episode)
James Arnold Taylor
Johnny Test (voice) (234 episodes)
Maryke Hendrikse
Susan Test (voice) (234 episodes)
Lee Tockar
The General / Bling-Bling Boy (voice) (234 episodes)
Ian James Corlett
Hugh Test (voice) (234 episodes)
KB
Kathleen Barr
Lila Test (voice) (234 episodes)
Louis Chirillo
Dukey (voice) (130 episodes)
Ashleigh Ball
Mary Test (voice) (130 episodes)
Media
Similar Movies
Recommendations
