Jamie Foxx (Curtis Taylor jr.), Beyoncé Knowles (Deena Jones), Eddie Murphy (James "Thunder" Early), Jennifer Hudson (Effie Melody White), Danny Glover (Marty Madison), Anika Noni Rose (Lorrell Robinson), Keith Robinson (Clarence Conrad White), Sharon Leal (Michelle Morris), Hinton Battle (Wayne), Ralph Louis Harris (M.C.), John Lithgow (Jerry Harris), Ken Page (Max Washington), Bobby Slayton (Komiker in Miami), Mariah I. Wilson (Magic), Yvette Cason (May), Michael-Leon Wooley (Tiny Joe Dixon), Loretta Devine (Jazzsängerin), John Krasinski (Sam Walsh), Alexander Folk (Ronald White), Esther Scott (Tante Ethel), Jordan Wright (Teddy Campbell), Dawnn Lewis (Melba Early), Jaleel White (Talentsucher), Jonell Kennedy (Joann), Sybyl Walker (Charlene), Leslie Nicole Lewis (Stepp Sister), Eboni Nichols (Stepp Sister), Arike Rice (Stepp Sister), Fatima Robinson (Stepp Sister), Aakomon Jones (Little Albert), Bernard Fowler (Tru-Tone), Anwar Burton (Tru-Tone), Tyrell Washington (Tru-Tone), Rory O'Malley (Dave), Laura Bell Bundy (Sweetheart), Anne Elizabeth Warren (Sweetheart), Ivar Brogger (David Bennett), Daren A. Herbert (Pianospieler im Jimmy's), Jocko Sims (Elvis Kelly), Pam Trotter (Rhonda), Anne Warren (Sweetheart), Cleo King (Janice), Eddie Mekka (Geschäftsführer des Clubs), Alejandro Furth (Sozialarbeiter), Dilva Henry (TV-Reporterin), Vince Grant (Produzent von American Bandstand), Robert Cicchini (Nicky Cassaro), Thomas Crawford (Fernsehregisseur), Charles Jones (Carl), Robert Curtis Brown (Aufnahmeleiter), Stephanie Owens (Tania Williams), Lorey Hayes (Reporterin), Gilbert Glenn Brown (bewaffneter Mann), Marty Ryan (Bühnentechniker), Michael Villani (Reporter aus Detroit), Daniel Riordan (DJ in L.A.), Kelly Sheerin (Go-Go Tänzerin)