All Cast
Arnold Schwarzenegger
Self
Mike Katz
Self - Mr. World 1973
Lou Ferrigno
Self - Mr. Universe 1974
Franco Columbu
Self - Mr. Olympia 1981
George Butler
Self - Director
Joe Weider
Self - Bodybuilding Publisher
Bill Grant
Self - Mr. America 1971
Ken Waller
Self - Mr. Universe 1975
Reg Park
Self - Friend and mentor
Ed Corney
Self
Matty Ferrigno
Self (archive footage)
Liev Schreiber
Self - Narrator (voice)
Sylvester Stallone
Self
