- Wayne Gretzky - Himself
- Walter Gretzky - Himself
- Janet Jones - Herself (as Janet Jones Gretzky)
- Jim Matheson - Himself
- Bruce McNall - Himself
- Marty McSorley - Himself
- Rod Phillips - Himself
- Peter Pocklington - Himself
- Luc Robitaille - Himself
- Glen Sather - Himself
- Peter Berg - Self
- Maya Moore - Self
- Jonathan Irons - Self
- Josh Brolin - Narrator (voice)
- Bill Walton - Self
- Tommy Morrison - Self
- George Foreman - Self
- Don King - Self
- Bob Arum - Self
- Al Bernstein - Self
- Dawn Brady - Self
- Larry Holmes - Self
- Freddie Roach - Self
- Frank Stallone Jr. - Self
- Troy Morrison - Self
- Trisha Morrison - Self
- Trey Lippe Morrison - Self
- Trent Morrison - Self
- Tim Morrison - Self
- Diana Morrison - Self
- Sylvester Stallone - Self (archive footage)
- Sylvester Stallone - Self
- Ray Mercer - Self
- Roy Cooper - Self
- Dan Rather - (archive footage)
- Bob Miller - Self
- Ken O'Brien - Self
- Suemay Oram - Self
- King Juan Carlos I of Spain - Self (archive footage)
- Quique Peinado - Self
Wayne Gretzky interpreta a Himself en la serie.
Walter Gretzky hace el papel de Himself.
Janet Jones hace el papel de Herself (as Janet Jones Gretzky).
Jim Matheson hace el papel de Himself.
Marty McSorley interpreta a Himself en la serie.
Rod Phillips interpreta a Himself en la serie.
Peter Pocklington interpreta a Himself en la serie.
Luc Robitaille interpreta a Himself en la serie.
Glen Sather hace el papel de Himself.
Maya Moore interpreta a Self en la serie.
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