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OK K.O.! Let's Be Heroes facts for kids

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OK K.O.! Let's Be Heroes
OK KO! logo.png
Genre Action
Created by Ian Jones-Quartey
Story by
  • Ian Jones-Quartey
  • Toby Jones
  • Erin Shade
  • Dave Tennant
Directed by
  • Art Director:
  • John Pham
  • Supervising Directors:
  • Toby Jones
  • Geneva Hodgson (S2–3)
  • Animation Director:
  • Kimson Albert (supervising)
Voices of
Theme music composer Mint Potion Studios
Ending theme "It's Only Magic"
by Rebecca Sugar
No. of seasons 3
No. of episodes 112 (list of episodes)
Executive producer(s)
  • Jennifer Pelphrey
  • Tramm Wigzell
  • Brian A. Miller
  • Rob Sorcher
  • Ian Jones-Quartey
  • Co-Executive Producer:
  • Conrad Montgomery (S1-3)
Producer(s) Supervising Producer:
Janet Dimon
Editor(s) Mattaniah Adams
Running time
  • 1–2 minutes (shorts)
  • 11 minutes (series)
  • 22 minutes (specials)
Production company(s) Cartoon Network Studios
Distributor Warner Bros. Television Distribution
Original network Cartoon Network
Picture format HDTV 1080i
Original release August 1, 2017 (2017-08-01) – September 6, 2019 (2019-09-06)

OK K.O.! Let's Be Heroes is an American action animated television series created by Ian Jones-Quartey for Cartoon Network. The show is based on Jones-Quartey's pilot Lakewood Plaza Turbo, which was released as part of Cartoon Network's 2013 Summer Shorts project. It was produced by Cartoon Network Studios. The web series premiered on Cartoon Network's YouTube channel and on Cartoon Network Video on February 4, 2016.

On March 9, 2017, nearly four years after the original short's premiere, Cartoon Network announced that the television series had been greenlit, and it premiered on August 1, 2017. The opening sequence was storyboarded by Japanese artist Hiroyuki Imaishi, co-founder of Studio Trigger.

On December 4, 2017, the series was confirmed to be renewed for a second season, which premiered on May 5, 2018. A third and final season, which was announced on June 26, 2019, premiered on July 7, 2019; the final episode aired on September 6, 2019.


OK K.O.! Let's Be Heroes is set in the retro-futuristic year of 201X. The series follows the titular character, K.O., and his efforts to become the world's greatest hero while working at Gar's Bodega (run by Mr. Gar), a hero supply shop in Lakewood Plaza. Alongside him are his best friends and co-workers Radicles, a narcissistic alien, and Enid, a levelheaded big sister-like ninja, as well as other heroes who work in the area.


List of OK K.O.! Let's Be Heroes episodes

Main voice cast

  • Courtenay Taylor as K.O., T.K.O., Blue Power, Whistle, Baby Shannon, Hon Dew
  • Ashly Burch as Enid (series and shorts), Gladys, Ms. Mummy, Foxy, Cherry, Ball Monster, Rippy Roo, Baby Teeth, Glitter Starlight, Tumbles, Plazamo ("Dark Plaza"), Hamster, Classmate 1 & 2 ("You're a Good Friend, KO!")
  • Ian Jones-Quartey as Radicles, Darrell, Crinkly Wrinkly, Cookie Man, Pird (episode 11), Frat Boy 2, Gregg, Point Trooper, Drone ("Mystery Sleepover"), URL, Gauntlet, Pickle, Nerd 2, Janner
  • David Herman as Mr. Gar, Brandon, Jethro, Mad Sam, Beardo, Rat, Steamborg Robot, Young Crinkly Wrinkly, Action News Narrator, Heroic Guy, Boxgar, Dragon
  • Kate Flannery as Carol, Gertie (in the pilot)
  • Jim Cummings as Lord Boxman, Boxman Jr., Gar-Man, Mecha-Maw, Robbie
  • Melissa Fahn as Dendy, Mikayla, Krissa, Monkey, Genesis
  • Kari Wahlgren as Shannon, Chillcat, Tumbles, Mrs. Gnarlio, Vormulax, Kid, P.O.I.N.T. HQ, Barista Pup, Wavezilla, Grandma
  • Robbie Daymond as Raymond, Co-Bruh, Rex, Announcer ("Beach Episode")
  • Chris Niosi as Nick Army, Pird, Ernesto, Neil, Face of Fear, Male Lead, Soloist, Anxious Ricky, Wistful Pete, Drone
  • Reshma Shetty as Elodie
  • Mary Elizabeth McGlynn as Dynamite Watkins, Miss Quantum, Snake
  • Cole Sanchez as Colewort, Topher, Driver, Plaque, Point Trooper
  • Melissa Villaseñor as Potato, Punching Judy, Drupe, Gertie, Ginger, Mega Football Baby, Shy Ninja, Biki, Phoebe, Punching Trudy

In addition, Stephanie Nadolny played K.O. and Gladys in the pilot and several episodes of the first season, and Mena Suvari portrayed Enid in the pilot.


On August 6, 2019, Ian Jones-Quartey announced that Cartoon Network opted to not renew the show for a fourth season. The series finale aired on September 6, 2019.


OK K.O.! Let's Be Heroes had its worldwide television premiere in the US on Cartoon Network on August 1, 2017, and aired on sister network Boomerang from August 7 to September 1, 2017.


Currently, all of the episodes are available on the iTunes Store, Apple TV, Amazon Prime Video and Hulu since June, August and October 2017, May 2018, May and July 2019 and March 2020 in HD and SD formats.

On September 1, 2020, the entire series became available on HBO Max in the United States. It is currently unknown if the series will become available on the service in other regions.

Video game

A mobile game, OK K.O.! Lakewood Plaza Turbo, was launched on Android and iOS on February 4, 2016 as a free game for those platforms. It is a beat 'em up developed by Double Stallion Games and published by Cartoon Network Games. The game's original score was composed by Mathieu Lavoie and FX Dupas at Vibe Avenue in Montreal, Canada.

Capybara Games developed a video game based on the show for the PlayStation 4, Xbox One, and Windows. Entitled OK K.O.! Let's Play Heroes, it was released on January 23, 2018, and a Nintendo Switch port was released on October 30, 2018.

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