Overview
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.
Seasons & Episodes
Season 1
Season 2
Season 3
Season 4
Season 5
Season 6
Key Information
Cast & Crew
James Arnold Taylor
Johnny Test (voice)
Maryke Hendrikse
Susan Test (voice)
Lee Tockar
The General / Bling-Bling Boy (voice)
Ian James Corlett
Hugh Test (voice)
Kathleen Barr
Lila Test (voice)
Scott McNeil
Mr. White / Bumper (voice)
Bill Mondy
Mr. Black (voice)
Louis Chirillo
Dukey (voice)
Ashleigh Ball
Mary Test (voice)
Trevor Devall
Dukey (voice)
Brittney Wilson
Andrew Francis
Frequently Asked Questions
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...
Johnny Test has 6 seasons with 234 episodes.
Johnny Test premiered on September 17, 2005.
No, Johnny Test has ended. The final episode aired on June 18, 2014.
Johnny Test originally aired on The WB. Check your local streaming services for availability.
Johnny Test was created by Scott Fellows.
Johnny Test has a rating of 6.3/10 based on user reviews.
Johnny Test is classified as Animation, Comedy, Action & Adventure, Sci-Fi & Fantasy, Kids.