- Leon Errol
- Knobby Walsh
- Joe Kirkwood Jr.
- Joe Palooka
- Guy Kibbee
- Uncle Charlie
- Elyse Knox
- Anne Howe
- Lionel Stander
- Harry Mitchell
- H.B. Warner
- Sen. McCarden
- Stanley Prager
- Rapadsky
- Warren Hymer
- Louie - Sparring Partner
- Richard Lane
- Phillips
- Cliff Nazarro
- First Character
- Fritz Feld
- Club Steward
- Sarah Padden
- Mom Palooka
- Louis Jean Heydt
- Chairman
- Freddie Steele
- Freddie Steele
- Tom Harmon
- Tommy Harmon
- Roy Atwell
- Senator Sam H. Smiley
- Ian Wolfe
- Editor W.W. Dwight
- Sam McDaniel
- Smoky - Second
- Eddie Gribbon
- Ziggy - Sparring Partner
- Marie Blake
- Maid
- Jack Roper
- Waldo - Sparring Partner
- Roger Daniel
- Steve Palooka
- Dick Fishell
- Dick Fishell - Sportswriter
- Robert J. Anderson
- Young Boy
- Phil Arnold
- Henchman
- Florence Auer
- Mrs. Archer
- Danny Beck
- Talkative Character
- Bill Becker
- Bill Becker - Sportswriter
- Edward Biby
- Board Member
- Tiny Brauer
- Henchman
- Bruce Cameron
- Goon
- Wheaton Chambers
- Board Member
- Tom Coleman
- Party Guest
- Oliver Cross
- Party Guest
- Harry Depp
- Little Man
- Jimmy Dime
- Fighter
- Al Eben
- Character
- Herbert Evans
- Board Member
- William Forrest
- Senator Johnson
- Phil Friedman
- Goon
- Jack George
- Headwaiter
- William Haade
- Goon Leader
- Alvin Hammer
- Knobby's Caddy
- John Indrisano
- Joe's Sparring Partner
- Boyd Irwin
- Schaefer - Board Member
- Russ Kaplan
- Fighter
- Robert Emmett Keane
- Harrington
- Stubby Kruger
- Fighter
- Bert LeBaron
- Goon
- Michael Mark
- Pop Palooka
- Patrick McVey
- Reporter Lewis
- Charles Meakin
- Party Guest
- Russell Meeker
- Waiter
- Ernesto Molinari
- Waiter
- Ida Moore
- Committee Woman
- Sol Murgi
- Party Guest
- Dorothy Neumann
- Mrs. Johnson
- William J. O'Brien
- Bartender
- Ted Pavelec
- Goon
- Shelby Payne
- Miss Edwards - Secretary
- Charles Perry
- Party Guest
- Joey Ray
- Henchman
- Joe Recht
- Caddy #2
- Marshall Reed
- Goon
- Paul Scardon
- File Room Attendant
- Scott Seaton
- Party Guest
- Jack Shea
- Fighter
- Eddie Lou Simms
- Sparring Partner
- Joe Smith
- Goon
- Arthur Space
- Reporter Quimby
- Ray Spiker
- Goon
- Robert St. Angelo
- Goon
- Bert Stevens
- Party Guest
- Ellinor Vanderveer
- Party Guest
