OK K.O.! Let's Be Heroes: The Movie

OK K.O.! Let's Be Heroes: The Movie is a 2020 American animated superhero comedy-drama film based on the Cartoon Network animated television series of the same name.

Plot
The entire universe is on the line when Lord Boxman teams up with Professor Venomous to put an end to Lakewood Plaza Turbo and conquer the universe. 16 year old K.O. and his friends Enid, Rad, Dendy, Mr. Gar, and his mother Carol will have what it takes to save their hometown.

Cast

 * Stephanie Nadolny – K.O., Whistle, T.K.O.
 * Ashly Burch – Enid, Gladys, Foxy, Ms. Mummy, Ball Monster, Cherry, Icky, Rippy Roo
 * Ian Jones-Quartey – Radicles, Darrell, Crinkly Wrinkly, Cookie Man, Boris
 * David Herman – Mr. Gar, Brandon, Jethro, Mad Sam, Beardo, Rat, Steamborg Robot
 * Kate Flannery – Carol
 * Jim Cummings – Lord Boxman
 * Kari Wahlgren – Shannon, Chillcat, Tumbles, Mrs. Gnarlio, Vormulax, Kid
 * Robbie Daymond – Raymond, Co-Bru
 * Chris Niosi – Nick Army, Pird, Ernesto, Neil
 * Mary Elizabeth McGlynn – Dynamite Watkins
 * Cole Sanchez – Colewort
 * Melissa Villaseñor – Potato, Punching Judy, Mega Football Baby, Drupe, Gertie, Ginger, Shy Ninja
 * Kali Hawk – Red Action
 * Ben Jones – A Real Magic Skeleton, Cactus Person
 * James Urbaniak – Mr. Logic, Joff the Shaolin Monk
 * Melissa Fahn – Dendy, Mikayla, Krissa
 * Lara Jill Miller – Fink
 * Marina Sirtis – Cosma
 * Michael Leon Wooley – The Sun, Ted Viking, Bell Beefer, Galgarion
 * Wallace Shawn – Wally the Wizard
 * Richard McGonagle – Chameleon Sr.
 * Tony Revolori – Chameleon Jr.
 * Andrés du Bouchet – Joe Cuppa, Small Joe
 * Keith David – Crinky Wrinkly Narration
 * Parker Simmons – Plazamo, Lad Boxman, Skateboard Nerd, Pow Card Narrator, Rude Kid
 * Robbie Rist – Gnarlio, Frat Boi, Corn Shepherd
 * Kath Soucie – Peej, Gnarlio Jr.
 * Steven Ogg – Professor Venomous, Shadowy Figure, Laserblast
 * Jonathan Davis – Succulentus
 * Reshma Shetty – Elodie
 * Diedrich Bader – Cupid
 * Carol Kane – Ginger
 * Clancy Brown – Pavel, Powio Statue, Mr. Cardsley
 * Nichole Bloom – Pepelina, Carla
 * Dave Fennoy – Guards, Kappa, Ofrang, Bernard, Spanky
 * Michael Sinterniklaas - Hero
 * Melique Burger – Theodosia, Wilhamena
 * Joe Nipote - Crudde, Corn Shepherd
 * Sterling Jarvis - Rad's Singing Voice
 * David Coburn - Captain Planet
 * Tessa Auberjonois - Dr. Blight
 * Melodee Spevack- Fox Tail
 * Dana Snyder - Doctor Greyman
 * James Hetfield - Alien Singer/Rhythm Guitarist
 * Kirk Hammett - Alien Lead Guitarist
 * Lars Ulrich - Alien Drummer
 * Robert Trujillo - Alien Bassist

Trivia

 * This film will retain the traditional 2D animation style used for film adaptations of cartoons rather than CGI.