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Latest episode: Episode 065

Watch Johnny Test Season 03 & 04 Cartoons Online Free

The adventures of average suburban boy Johnny Test, who wittingly plays test subject for his genius twin sisters' various experiments, reluctantly fighting evil villains in the process.. Watch and download Johnny Test Season 03 & 04 online for free on Cartoon8 at with premium link. Please click to play icon on for watching Johnny Test Season 03 & 04

Genres: Comedy Cartoon, Sci-Fi Cartoon

Date aired: 2007

Total episode: 39 eps

Status: Completed

Views: 210,406