Malcolm D. Lee Director LeBron James Self, Producer Don Cheadle Al G. Rhythm Actor Cedric Joe Dom James Actor Khris Davis Malik Actor Sonequa Martin-Green Kamiyah James Actor Ceyair Wright Darius James Actor Harper Leigh Alexander Xosha James Actor Xosha Roquemore Shanice James Actor Stephen Kankole Young LeBron (13 Years) Actor Jalyn Hall Young Malik (13 Years) Actor Wood Harris Coach C Actor Jordan Thomas Young Boy Actor Anthony Davis Self Damian Lillard Self Klay Thompson Self Nneka Ogwumike Self Diana Taurasi Self Randy Mims Barbershop Customer Actor Gerald "Slink" Johnson Warner Bros. Security Guard Actor Ernie Johnson Game Announcer Actor Lil Rel Howery Game Announcer Actor Jeff Bergman Bugs Bunny, Sylvester, Yosemite Sam, Fred Flintstone, Yogi Bear Voice Zendaya Lola Bunny Voice Gabriel "Fluffy" Iglesias Speedy Gonzales Voice Eric Bauza Daffy Duck, Porky Pig, Foghorn Leghorn, Elmer Fudd, Marvin the Martian Voice Candi Milo Granny Voice Bob Bergen Tweety Bird Voice Fred Tatasciore Taz Voice Juel Taylor Screenwriter Tony Rettenmaier Screenwriter Keenan Coogler Screenwriter Terence Nance Screenwriter, Executive Producer Jesse Gordon Screenwriter Celeste Ballard Screenwriter Ryan Coogler Producer Maverick Carter Producer Duncan Henderson Producer Sev Ohanian Executive Producer Zinzi Coogler Executive Producer Allison Abbate Executive Producer Jesse Ehrman Executive Producer Jamal Henderson Executive Producer Spencer Beighley Executive Producer Justin Lin Executive Producer Ivan Reitman Executive Producer Salvatore Totino Cinematographer Bob Ducsay Film Editing Kris Bowers Original Music Kevin Ishioka Production Design Akin McKenzie Production Design Clint Wallace Production Design Julien Pougnier Art Director Melisa Jusufi Set Decoration Melissa Bruning Costume Design Kim Coleman Casting Eric Sundahl Art Director