Creator
Creator
Cast
Susan Test
Johnny Test
The General
Mary Test
Dukey
Overview
Watch Johnny Test Season 4 full episodes online free watchcartoononline.
Synopsis: 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.
Original title Johnny Test
TMDb Rating 5.3 59 votes
First air date Sep. 17, 2005
Last air date Jun. 18, 2014
Seasons 6
Episodes 156
Average Duration 11 minutes
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