Playback is currently unavailable for S4 E1 · Johnny's New Baby Sisters. Episode details remain available below.
Johnny Test
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.
- Created by:
- Scott Fellows
- Cast:
- James Arnold Taylor, Maryke Hendrikse, Ashleigh Ball, Lee Tockar
- Language:
- English
- Country:
- Canada, United States of America
- Network:
- The WB, Cartoon Network, The CW, Teletoon, Boomerang
Episode guide
Seasons
Season 4
Episodes
E01
Episode 1
Johnny's New Baby Sisters
2009-09-10 · 11mSusan and Mary purposely turn themselves into babies while the parents are out, and Johnny has to keep them safe from the irresponsible babysitter Gil; this interferes with a party he and Dukey had been planning.
Current episode
E02
Episode 2
Porta Johnny
2009-09-10 · 11mJohnny tricks his sisters into letting him have teleporting powers. Susan and Mary mess with the powers to get revenge. Later the twins accidentally get them caught in a middle of an art robbery.
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E03
Episode 3
Join the Johnny Scouts
2009-09-17 · 11mAfter Johnny lands his bike into a garbage truck, he becomes a Lady Bird Scout and tries to sell 1,000 boxes of cookies to get a new one. Little does he know, Sissy wants the bike as well, but for a better reason.
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E04
Episode 4
Johnny BC
2009-09-17 · 11mJohnny goes back in time in order to get a sloth bone for the twins, but when he returns he becomes a caveman, interfering with his grounding from selling Hugh's personal items.
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E05
Episode 5
Runaway Johnny
2009-09-24 · 11mJohnny and Dukey run away when Johnny's parents say he's old enough to do chores but not old enough to watch PG-13 movies.
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E06
Episode 6
Johnny on the Spot
2009-09-24 · 11mJohnny steals a portable black hole, which later creates an early apocalypse.
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E07
Episode 7
Dark Johnny
2009-10-01 · 11mJohnny joins forces with Dark Vegan to get him back to his home planet.
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E08
Episode 8
No Homework for Johnny
2009-10-01 · 11mSusan and Mary build Johnny a robot in order to help him do his homework, but the robot ends up stealing things for Johnny.
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E09
Episode 9
Papa Johnny
2009-10-08 · 11mSusan and Mary switch Johnny and Hugh's brains after the two make a bet that involves taking on each other's lives.
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E10
Episode 10
The Johnnyminster Dog Show
2009-10-08 · 11mJohnny and Dukey try to get in a dog show which only allows perfectly groomed and trained dogs.
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E11
Episode 11
Dukey Jekyll and Johnny Hyde
2009-10-15 · 11mDukey drinks a liquid which makes him turn into a monster. To make matters worse, a dog catcher (and later Mr. Black and Mr. White) are after him.
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E12
Episode 12
Johnny's Trophy Case
2009-10-15 · 11mJohnny wants to get a trophy to put in his trophy case. Susan and Mary get obsessed with winning, so the three of them enter The Pork Belly River Jumpoff to win 1 million dollars and a trophy.
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E13
Episode 13
Johnny's Amazing Cookie Company
2009-11-26 · 11mSusan and Mary make fortune cookies that come true, and Johnny sells them with the typical drastic results.
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E14
Episode 14
★ 10.0Johnny's Big Dumb Sisters
2009-11-26 · 11mThe twins' latest invention accidentally makes them dumb thanks to Johnny right before their scholarship interview.
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E15
Episode 15
My Johnny Guard
2009-12-03 · 11mJohnny gets hired to stop Bling-bling from kissing Susan, but Johnny turns on the sisters once Bling-Bling bribes him.
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E16
Episode 16
Tom and Johnny
2009-12-03 · 11mJohnny turns into a mouse for Susan and Mary, but when Mr. Mittens comes, things get chaotic. This episode is a parody of Tom and Jerry.
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E17
Episode 17
The Quantum of Johnny
2009-12-10 · 11mJohnny tries to get invited to a party to stop a villain. NOTE: Susan and Mary don't appear in this episode.
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E18
Episode 18
Johnny Get Yer Gum
2009-12-10 · 11mMr. Whacko invents a new helium gum that lifts kids into the sky, and Johnny must save them.
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E19
Episode 19
Old School Johnny
2010-01-07 · 11mJohnny travels to 1845 when school was easier, but he gets stuck there because the power supplier to the Turbo Time Tea house hasn't been invented yet. The sisters and Johnny try to find outdated technology to power the tea house.
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E20
Episode 20
Johnny Degrees Below Zero
2010-01-07 · 11mJohnny creates a magnetic force field on the Earth which makes Porkbelly the new north pole.
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E21
Episode 21
Johnny Johnny
2010-02-04 · 11mJohnny and Dukey get framed for stuff that Johnny and Dukey look alike robots (which Mr. Black and Mr. White made) do around Porkbelly.
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E22
Episode 22
Johnny Double Coupons
2010-02-04 · 11mJohnny keeps attempting to ride down Suicide hill, but Susan and Mary keep redeeming Johnny's coupons.
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E23
Episode 23
X-Ray Johnny
2010-02-18 · 11mJohnny gets X-Ray goggles.
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E24
Episode 24
The Destruction of Johnny X
2010-02-18 · 11mJohnny and Dukey decide to remain in super hero mode permanently but find being a superhero is harder than they think.
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E25
Episode 25
iJohnny
2010-02-25 · 11mThe twins upgrade Johnny's new cell phone. Later the phone becomes too intelligent and begins hacking government space missiles.
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E26
Episode 26
Johnny vs. The Mummy
2010-02-25 · 11mJohnny goes on a trip to the museum and brings the things to life, including a mummy.
Watch progress · Not trackedEpisode 27
Johnny Grow Your Own Monster
2010-05-10 · 11mJohnny's mail order foam monster becomes a real monster once the twins swap the water with their bottle of "side effects".
Watch progress · Not trackedEpisode 28
Who's Johnny
2010-05-17 · 11mWhen Sissy considers Johnny too gross to help her in a science project, he begs Susan and Mary to change his personality.
Watch progress · Not trackedEpisode 29
Princess Johnny
2010-05-24 · 11mJohnny poses as a princess in order to prevent a war. Meanwhile, Susan and Mary decide that they would like to act like normal girls.
Watch progress · Not trackedEpisode 30
99 Deeds of Johnny Test
2010-07-05 · 11mAfter getting his 99th detention, Johnny learns he must perform 99 good deeds or he will be sent to military school.
Watch progress · Not trackedEpisode 31
Johnny's Amazing Race
2010-07-12 · 11mJohnny and Dukey challenge his sisters, their friends, and their enemies to a survival challenge in which the winning team gets hundreds of dollars in gift certificates.
Watch progress · Not trackedEpisode 32
Johnny Test in 3D
2010-07-19 · 11mWhile the tests go on vacation, Johnny and Dukey try to get back into their hotel room and avoid the hotel manager that doesn't allow pets.
Watch progress · Not trackedEpisode 33
Guess Who's Coming to Johnny's for Dinner
2010-07-26 · 11mMr. Black moves in with the Tests after he embarrasses Mr. White at the dance contest auditions.
Watch progress · Not trackedEpisode 34
Johnny's New BFF
2010-08-02 · 11mJohnny's parents keep setting Johnny up with new friends. When those don't work out, Johnny reveals Dukey's intelligence. Later, Dukey spends more time helping Johnny's parents instead of playing with Johnny.
Watch progress · Not trackedEpisode 35
Johnny vs. Bling Bling IV
2010-08-09 · 11mJohnny once again has to protect Susan from Bling Bling Boy who is determined to have her as his valentine.
Watch progress · Not trackedEpisode 36
Johnny's Big Sister Smackdown
2010-08-16 · 11mSusan and Mary both want Gil to go on a date with them, so they put up a wrestling match using rough guts (Susan uses Johnny's while Mary uses a lion's), but it leads to destructive results.
Watch progress · Not trackedEpisode 37
Sunshine Malibu Johnny
2010-08-23 · 11mJohnny goes to the beach to surf, but there are no waves, so Susan and Mary build a wave making machine and special surfboard for him.
Watch progress · Not trackedEpisode 38
Johnnyicle
2010-08-30 · 11mJohnny and Dukey try to help Brain Freezer get a girlfriend.
Watch progress · Not trackedEpisode 39
King Johnny
2010-09-06 · 11mJohnny becomes obsessed with domination after Susan and Mary bring his chess pieces to life.
Watch progress · Not trackedEpisode 40
Johnny Re-Animated
2010-09-13 · 11mJohnny uses one of his sisters' inventions to bring two cartoon characters to the real world in order to scare Sissy out of the house, but the characters mistake Porkbelly for a zombie world and try to destroy it.
Watch progress · Not trackedEpisode 41
Johnny Cakes
2010-09-20 · 11mIt's Lila's birthday and the family spends the morning to make her birthday a success. Johnny struggles to make her breakfast, Hugh tries to figure out a good but inexpensive gift for her, and the twins keep trap Lila in her bedroom until Hugh and Johnny are ready.
Watch progress · Not trackedEpisode 42
Johnny Tube
2010-09-27 · 11mJohnny wants to become a internet sensation.
Watch progress · Not trackedEpisode 43
Sleepover at Johnny's
2010-10-04 · 11mJohnny is dragged into Susan and Mary's plan to get Gil to be in a sleep-over, but Bling-Bling Boy and Dark Vegan's daughter Jillian become involved as well, with the usual chaos ensuing.
Watch progress · Not trackedEpisode 44
Johnny's Got a Wart!
2010-10-11 · 11mJohnny gets a wart, and when his sisters try to get rid of it, it gives the wart intelligence and seems to make Johnny's life better, but he tries to take over his body as he gets more powerful.
Watch progress · Not trackedEpisode 45
Johnny's Royal Flush
2010-10-18 · 11mWhen Susan and Mary turns Johnny into a fish as part of one of their experiments, Hugh flushes him down the toilet by mistake where he ends up in the sewer, and he has to swim for his life when he runs into an alligator.
Watch progress · Not trackedEpisode 46
Johnny Test's Day Off
2010-10-25 · 11mJohnny ditches school with a relentless truant officer in hot pursuit.
Watch progress · Not trackedEpisode 47
Johnny & Dark Vegan's Battle Brawl Mania
2010-11-01 · 11mDark Vegan once again tries to destroy Johnny, who is trying to cheer up lonely Repto-Slicer.
Watch progress · Not trackedEpisode 48
A Scholarship for Johnny
2010-11-08 · 11mHugh wants to train Johnny to be good at sports so that he could get a sports scholarship to college.
Watch progress · Not trackedEpisode 49
Johnny Boat Racing
2010-11-15 · 11mJohnny, his friends, and his enemies all compete in a boat race against an arrogant rowing team.
Watch progress · Not trackedEpisode 50
Johnny Lock Down
2010-11-22 · 11mJohnny is determined to get a flytrap plant from his sisters for his school's science fair.
Watch progress · Not trackedEpisode 51
Good Ol' Johnny Test
2010-11-29 · 11mJohnny is in charge of the school play about recycling while Susan and Mary create a garbage-eating monster.
Watch progress · Not trackedEpisode 52
Johnny X Strikes Back Again
2010-12-30 · 11mThe general takes away the lab, and than builds agent cyborgs. They charge up Johnny X and their friends to stop them!
Watch progress · Not trackedCast
James Arnold Taylor
Johnny Test (voice)
Maryke Hendrikse
Susan Test (voice)
Ashleigh Ball
Mary Test (voice)
Lee Tockar
The General / Bling-Bling Boy (voice)
Ian James Corlett
Hugh Test (voice)
Trevor Devall
Dukey (voice)
Kathleen Barr
Lila Test (voice)
Scott McNeil
Mr. White / Bumper (voice)
Bill Mondy
Mr. Black (voice)
