Director
Vincent Cartier
Self, Walter's twin brother and manager
Walter Cartier
Self
Nat Fleischer
Self, boxing historian
Bobby James
Self, Walter's opponent
Judy Singer
Self, female fan in crowd (uncredited)
Stanley Kubrick
2015
2021
Self (man at ringside with camera) (uncredited)
Alexander Singer
Douglas Edwards
Narrator
2017
2013
2002
2023
2009
2024
2019
2020
1998
