Episode 1
Seasons Change
11m
When our heroes return from time off, KO is horrified to discover that things have changed.
Where to watch OK K.O.! Let's Be Heroes
TV series
OK K.O.! Let's Be Heroes
20173 seasons8.0 / 10
Let's start the show!
Animated comedy set in the futuristic year of 201X, where the world is populated by video game and manga-esque characters.
Streaming, rental and purchase options
Where to watch in United States
Checked Jul 22, 2026
You can also rent or buy it from Google Play, Amazon, Apple TV, and Fandango at Home. Use the direct links below to open the provider.
Synopsis
Animated comedy set in the futuristic year of 201X, where the world is populated by video game and manga-esque characters.
Season 2 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
Lord Cowboy Darrell
11m
Everyone is forced to deal with some major changes at Boxmore.
Where to watch OK K.O.! Let's Be Heroes
Episode 3
Plaza Film Festival
11m
When the plaza has its own film festival, KO, Enid and Rad are sure their entry will win!
Where to watch OK K.O.! Let's Be Heroes
Episode 4
Be a Team
11m
Mr. Gar brings in some team building experts to help KO, Enid and Rad.
Where to watch OK K.O.! Let's Be Heroes
Episode 5
My Fair Carol
11m
KO, Enid and Rad team up to help Carol out with a special occasion.
Where to watch OK K.O.! Let's Be Heroes
Episode 6
Let's Watch the Boxmore Show
11m
Our heroes discover that the Boxmore security camera feed is the most entertaining thing ever.
Where to watch OK K.O.! Let's Be Heroes
Episode 7
Your World Is an Illusion
11m
KO tries to help a hero in need and ends up needing some help of his own.
Where to watch OK K.O.! Let's Be Heroes
Episode 8
The So-Bad-Ical
11m
When a new substitute shows up, KO and Dendy decide they need to get their old teacher back.
Where to watch OK K.O.! Let's Be Heroes
Episode 9
Point to the Plaza
11m
When a Gloop infestation takes over the plaza, Point arrives to contain the situation.
Where to watch OK K.O.! Let's Be Heroes
Episode 11
Red Action to the Future
11m
When Red Action is called to the future for an epic battle, Enid is unsure of what to do.
Where to watch OK K.O.! Let's Be Heroes
Episode 12
Dendy's Power
11m
Dendy and KO discover a fun and exciting new POW Card exploit.
Where to watch OK K.O.! Let's Be Heroes
Episode 13
Special Delivery
11m
Enid and Rad go on a road trip to deliver a package.
Where to watch OK K.O.! Let's Be Heroes
Episode 14
Wisdom, Strength, and Charisma
11m
When Enid goes to a new school, KO sets out to make sure she fits in.
Where to watch OK K.O.! Let's Be Heroes
Episode 15
Bittersweet Rivals
11m
Enid is forced to confront lingering issues from a past friendship.
Where to watch OK K.O.! Let's Be Heroes
Episode 16
Are You Ready for Some Megafootball?
11m
Lakewood's Megafootball team takes on their rival in a big game.
Where to watch OK K.O.! Let's Be Heroes
Episode 17
Mystery Sleepover
11m
KO, Enid and Rad attempt to solve a mystery.
Where to watch OK K.O.! Let's Be Heroes
Episode 18
Crossover Nexus
11m
In the Cartoon Network City, K.O. is summoned by the villain Strike who plans on eradicating all the heroes from the Cartoon Network Universe. Now K.O. must team up with Garnet from Steven Universe, Ben Tennyson from Ben 10 and Raven from Teen Titans Go! to stop him.
Episode credits
Guest stars Estelle, Tara Strong, Peter Browngardt, Michael Dorn, John DiMaggio
Episode 19
Monster Party
11m
Enid is faced with a choice when her old friends from Ghoul School show up.
Where to watch OK K.O.! Let's Be Heroes
Episode 20
Super Black Friday
11m
After being forced to work on a holiday, KO, Rad and Enid take a stand.
Where to watch OK K.O.! Let's Be Heroes
Episode 21
Final Exams
11mmid season
KO, Enid and Rad team up with an unlikely ally to take on an unlikely foe.
Where to watch OK K.O.! Let's Be Heroes
Episode 22
CarolQuest
11m
Carol is forced to bring KO along as she defends the Plaza from a new threat.
Where to watch OK K.O.! Let's Be Heroes
Episode 23
Soda Genie
11m
When KO, Rad, and Enid find a soda bottle with a genie in it, they get more than they bargained for.
Where to watch OK K.O.! Let's Be Heroes
Episode 24
Plaza Alone
11m
It's KO's birthday, and Rad and Enid want to make sure everything goes perfectly.
Where to watch OK K.O.! Let's Be Heroes
Episode 25
Boxman Crashes
11m
Lord Boxman crashes at Venomous’ lair and inserts himself into his villainous affairs.
Where to watch OK K.O.! Let's Be Heroes
Episode 26
All in the Villainy
11m
KO, Rad and Enid are confused to find the villains are more interested in battling each other than them.
Where to watch OK K.O.! Let's Be Heroes
Episode 27
Sidekick Scouts
11m
KO gets more than he bargained for when he gets a sidekick.
Where to watch OK K.O.! Let's Be Heroes
Episode 28
Whacky Jaxxyz
11m
When the hot new toy trend of Whacky Jaxxyz comes to Lakewood, KO says goodbye to his POW Cards.
Episode credits
Guest stars SungWon Cho
Episode 29
Project Ray Way
11m
When Raymond starts his own fashion line, Rad and Drupe decide to make something even better.
Where to watch OK K.O.! Let's Be Heroes
Episode 30
I Am Jethro
11m
When a different kind of Jethro rolls off the assembly line, the plaza is in for some surprises.
Where to watch OK K.O.! Let's Be Heroes
Episode 31
GarQuest
11m
Gar and KO team up for a secret mission.
Where to watch OK K.O.! Let's Be Heroes
Episode 32
Gar Trains Punching Judy
11m
With a big fight coming up, Punching Judy turns to KO and Gar to help her prepare.
Where to watch OK K.O.! Let's Be Heroes
Episode 33
Beach Episode
11m
Surf’s up on a wacky beach adventure when our heroes are challenged to the ultimate beach battle.
Where to watch OK K.O.! Let's Be Heroes
Episode 34
OK A.U.!
11m
An evil warlock takes our heroes to a strange alternate universe.
Where to watch OK K.O.! Let's Be Heroes
Episode 35
KO’s Health Week
11m
KO spends a week dispensing healthy tips to everyone in the plaza.
Where to watch OK K.O.! Let's Be Heroes
Episode 36
Rad’s Alien Sickness
11m
When our heroes are infected with a virus, Rad stubbornly refuses to back down.
Where to watch OK K.O.! Let's Be Heroes
Episode 37
Dark Plaza
11mfinale
KO and the heroes of the Plaza fight to save Lakewood Plaza Turbo with everything on the line.
Where to watch OK K.O.! Let's Be HeroesEpisode information updated Jul 24, 2026
More about OK K.O.! Let's Be Heroes
Cast
Courtenay TaylorK.O. (voice)
Kate FlanneryCarol (voice)
Jim CummingsLord Boxman
Ashly BurchEnid (voice)
Ian Jones-QuarteyRad (voice)
David HermanMr. Gar (voice)
Roger Craig SmithSonic the Hedgehog
Colleen O'ShaughnesseyMiles "Tails" ProwerCredits
- Created by
- Ian Jones-Quartey
- Written by
- Parker Simmons, Ryann Shannon, Dave Alegre, Danny Ducker, Geneva Hodgson, Haewon Lee, Stevie Borbolla, Mira Ongchua
Production details
- Status
- Ended
- Series type
- Scripted
- Episodes
- 108
- Original language
- English
Networks & production
Cartoon NetworkUnited States
YouTube
Cartoon Network StudiosUnited States
Themes
adoringanime inspiredappreciativeapprovingawestruckchild protagonistcomfortingcomplex
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