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Johnny Test

Cartoon Network



User Score: 147

Johnny Test
out of 10
User Rating
975 votes

By TV.com Users

Previously Aired Episode

AIRED ON 4/23/2014

Season 6 : Episode 51

Show Summary

Imagine having a lollipop that gives you the strength of a hundred men or a rocket-powered backpack that can send you to the Moon or genetically altering your dog to make him talk. Johnny Test can do all of that... and more! So it's not just another day in the life of a boy. Johnny Test chronicles the adventures of a fearless 11-year-old boy, his genetically engineered super dog Dukey and his 13-year-old super genius scientist twin sisters, Susan and Mary, who use Johnny as their guinea pig for their out-of-this-world scientific experiments. And half of the time their experiments cause something bad or earth-deadly to happen. Then they have to save the day after they started it. Broadcast History: Johnny Test originally premiered on Saturday, September 17, 2005 at 11:00am (ET) on Kids' WB! The show ran for three seasons on that network before premiering its fourth season Thursdays at 8:00pm (ET) on Cartoon Network. Season five premiered on Monday, June 13, 2011 at 7:00pm (ET). New episodes premiered in the series' new timeslot of Wednesdays at 7:30pm (ET) on January 11, 2012. New episodes currently air Wednesday at 7:30pm (ET) on Cartoon Network.



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Fan Reviews (249)

  • Ah, Teletoon/Cartoon Network you kept letting this dead horse be beaten.

    This show started very fresh actually, but over time, it just existed, its plots were just rehashed over time, its characters became over used and it just led to the show becoming annoying and not wanted anymore and thus its reputation became crappy and it ended with one.
  • I'm sorry haters, but I like this show....

    Don't hate me but I like this show. I admit that this is a ripoff of Dexter's Lab and Fairly Oddparents, but I still like Johnny Test, it is a good show. You can hate me, but I will like this show. Sure, the animation is not too good but overall, this is an OK show. I don't write the plot because everyone knows that. So, JT is OK.
  • Why?! This show is one of the most unbearable!

    Ever since The WB and UPN merged into the The CW and Kids WB was shut down and Cartoon Network picked up the series, this show has been nothing but trouble to this society. And I thought Family Guy was a lot more bad. When I first saw it, I really thought it was good, but now all I see is crap, nothing but horrible, horrible CRAP!!! This show is a rip-off of: Dexter's Laboratory, Scooby-Doo, Fairly Oddparents, Pokemon and so on. I glad it got cancelled, but the one character that I like more was Johnny's mother, she's attractive. Anyways, I'm happy that it's done.moreless
  • CN's version of CatDog

    Admit both this and the other show were lame then and there lame now. And like CatDog the characters are stereotypes, the plots are nothing special and the antagonist would win at the end. If Boomerang reran this, don't waist your time.

    I hate this show, Johnny is an annoying, ***ed, ugly, stupid, spoiled little *** that needs to die and so as his family. This show is very uncreative and poorly made, the plots are repetitive, and the characters are poorly made and their personalities are undeveloped. This show possibly ended on December 25, 2014 (Christmas). Every other show is better than this shitty show that rips off Dexter's Lab.
  • © Warner Bros. Animation
  • © Warner Bros. Animation
  • © Warner Bros. Animation
  • © Warner Bros. Animation

More Info About This Show


Pre-Teens, child hero, Tweens, talking animals, teen angst