John C. Reilly as Jerry Buss
Quincy Isaiah as Magic Johnson
Jason Clarke as Jerry West
Adrien Brody as Pat Riley
Gaby Hoffmann as Claire Rothman
Jason Segel as Paul Westhead
Hadley Robinson as Jeanie Buss
DeVaughn Nixon as Norm Nixon
Solomon Hughes as Kareem Abdul-Jabbar
Spencer Garrett as Chick Hearn
Delante Desouza as Michael Cooper
Sally Field as Jessie Buss