- Solomon Hughes - Kareem Abdul-Jabbar
- Tamera Tomakili - Earleatha 'Cookie' Kelly
- Brett Cullen - Bill Sharman
- Stephen Adly Guirgis - Frank Mariani
- Spencer Garrett - Chick Hearn
- Sarah Ramos - Cheryl Pistono
- Molly Gordon - Linda Zafrani
- Joseph Brooks - Lon Rosen
- Jimel Atkins - Jamaal Wilkes
- Rob Morgan - Earvin Johnson Sr.
- Sally Field - Jessie Buss
- Michael O'Keefe - Jack Kent Cooke
- Kate Arrington - Joann Mueller
- Sean Small - Larry Bird
- Kirk Bovill - Donald Sterling
- Daniel Deyoung - Rod Thorn
- Emily Berry - Head Nurse
- Anusha Angur - Young Nurse
- Stewart Skelton - Cooke Lead Counsel
- Emil Beheshti - Cooke Counsel 2
- Edward Fletcher - Sportswriter
- Brian Mahoney - Sportswriter
- Ted Enberg - Dick Enberg
- Cayden K. Williams - 8-Year-Old Earvin
- Landon Gordon - Child Actor
- Gayla Johnson - Beauty Parlor Woman
- Tiffany Jeneen - Beauty Parlor Woman
- Stevvi Alexander - Beauty Parlor Woman
- Arielle Reitsma - Honey
- Jonathan T. Floyd - Fred / Playboy Mansion Valet
- Michael James Boehler - Naked Man
- Terrence Stone - Butler
- Michael Whaley - Horn Nightclub MC
- Michael Majacks - Cab Driver
- Theresa Cameron - Stage Mom
- Yulia Rogatneva - Sterling Girl
- Olivia Novak - Sterling Girl
- G. Larry Butler - Johnny Most
- Thom Pinto - Male Radio Broadcaster (voice)
- Courtney Friel - Female Radio Broadcaster (voice)
- Harold Boons - Funny Johnson Uncle
- Bettye Davis - Funny Johnson Aunt
- Shiyenne Talley - Johnson Sister
- Catherine Pearlman - Bulls Secretary
- Idan Ravin - Daytime TV Anchor
- Michael Chiklis - Red Auerbach
- LisaGay Hamilton - Christine Johnson
- Rickey Brown - Quincy Johnson
- Darone Okolie - Larry Johnson
- Andy Hirsch - David Stern
- David Purdham - Larry O'Brien
- Jack Doke - Dennis McKinney
John C. Reilly interpreta a Jerry Buss en la serie.
Quincy Isaiah interpreta a Earvin 'Magic' Johnson en la serie.
Jason Clarke hace el papel de Jerry West.
Adrien Brody interpreta a Pat Riley en la serie.
Gaby Hoffmann interpreta a Claire Rothman en la serie.
Jason Segel interpreta a Paul Westhead en la serie.
Tracy Letts hace el papel de Jack McKinney.
Hadley Robinson interpreta a Jeanie Buss en la serie.
DeVaughn Nixon hace el papel de Norman 'Norm' Nixon.
Solomon Hughes interpreta a Kareem Abdul-Jabbar en la serie.
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