- Til Schweiger
- Max Schmeling
- Leonard Roberts
- Joe Louis
- Richard Roundtree
- Jack Blackburn
- David Paymer
- Joe Jacobs
- Peta Wilson
- Anny Ondra
- Bruce Weitz
- Mike Jacobs
- Siena Goines
- Marva Lewis
- John Toles-Bey
- John Roxborough
- Jürgen Schornagel
- Max Machon
- Paul Collins
- Jim Farley
- August Zirner
- David Lewin
- Rolf Kanies
- Adolph Hitler
- Wilfried Hochholdinger
- Joseph Goebbels
- Cole S. McKay
- Paolino Uzcudun
- Daniel Hugh Kelly
- Jack Dempsey
- Frank Shattuck
- James Braddock
- Joachim Paul Assböck
- Gestapo Lieutenant
- Errol Shaker
- Harlem Preacher
- Eva Plackner
- Hotel Manager
- Jeff Burrell
- Reporter
- John Keogh
- Veteran Reporter
- Harvey Friedman
- Beat Writer
- Billy Banner
- Bar Back
- Jeffrey Mittleman
- Official at Weigh-In
- Peter Gilbert Cotton
- Ring Announcer
- Jeff Hess
- Radio Announcer
- Shermann Steward
- Boy
- Jarreth J. Merz
- Boy's Father
- Ben Posener
- Braddock's Manager
- Jörg Schneider
- Arthur Donovan
- Gabriel Walsh
- Waiter
- Luciano Rios Robledo
- Rocky Marciano
- Anthony Russel
- Jersey Joe Walcott
- J.J. Gordon
- I.R.S. Agent
- Ricky Watson
- Smitty
- Dirk Schoedon
- Kurt Tucholsky
- Peter Pauli
- Heinrich Mann
- Frank-Lorenz Engel
- George Grosz
- Jeff Caster
- Businessman at Dempsey's
- Gerhard Haase-Hindenberg
- German Physician
- Ian Dickinson
- Coca-Cola Suit #1
- Benjamin Rae
- Coca-Cola Suit #2
- Paul Jaconi-Biery
- Mover
- Errol Trotman-Harewood
- Solomon Weaver
- Joel Kirby
- M.P. #1
- Philip Rafferty
- M.P. #2
- Steve Hudson
- Mustard Salesman
- Jeff Boyd
- Army General
- Tyron Ricketts
- Red Cap
- Hans-Peter Miesner
- Boxing Official
- Karl-Heinz Siebert
- Referee
- Garland Whitt
- John Roxborough
- Mirjam Barner
- Joe's Black Mistress
- Julia Horvath
- Floozy
- Clayton Nemrow
- Maitre D' Edward
- Thomas Rösicke
- Bartender at Jack Dempsey's Bar
