Boots Riley Director, Screenwriter, Original Music LaKeith Stanfield Cassius Green Actor Tessa Thompson Detroit Actor Jermaine Fowler Salvador Actor Omari Hardwick Mr. Blank Actor Terry Crews Sergio Actor Kate Berlant Diana DeBauchery Actor Michael X. Sommers Johnny Actor Danny Glover Langston Actor Steven Yeun Squeeze Actor Armie Hammer Steve Lift Actor Robert Longstreet Anderson Actor David Cross Cassius's White Voice Voice Patton Oswalt Mr. Blank's White Voice Voice Lily James Detroit's White British Voice Voice Forest Whitaker First Equisapien, Demarius Actor, Producer Rosario Dawson Voice in Elevator Voice Shelley Mitchell Mrs. Costello Actor Nina Yang Bongiovi Producer Charles D. King Producer George Rush Producer Jonathan Duffy Producer Kelly Williams Producer Michael Y. Chow Executive Producer Michael K. Shen Executive Producer Kim Roth Executive Producer Poppy Hanks Executive Producer Philipp Engelhorn Executive Producer Caroline Kaplan Executive Producer Gus Deardoff Executive Producer Doug Emmett Cinematographer Terel Gibson Film Editing Merrill Garbus Original Music Nate Brenner Original Music Jason Kisvarday Production Design Stephen Dudro Art Director Kelsi Ephraim Set Decoration Sarah Moudjebeur Set Decoration Deirdra Elizabeth Govan Costume Design Eyde Belasco Casting