- Clark Gable
- Mike Brannan
- Barbara Stanwyck
- Regina Forbes
- Adolphe Menjou
- Gregg
- Will Geer
- Jack Mackay
- Roland Winters
- Dwight Barrington
- William C. McGaw
- Joie Chitwood
- Lela Bliss
- Regina's Secretary
- Emory Parnell
- Mr. Wendall
- Frank Jenks
- Press Agent
- Helen Spring
- Janie
- Bill Hickman
- Mike's Pit Crew
- J. Lewis Smith
- Mike's Pit Crew
- Ted Husing
- Ted Husing
- Erville Alderson
- Newspaper Editor
- Henry Banks
- Driver
- Chet Brandenburg
- Pit Crew Member
- Morgan Brown
- Racing Spectator
- Steve Carruthers
- Greengrove Race Spectator
- Hal K. Dawson
- IMRA Promoter
- Marcel De la Brosse
- Minor Role
- Dominic 'Pee Wee' Distarce
- Driver
- Bess Flowers
- Greengrove Race Spectator
- Cay Forester
- Minor Role
- Byron Foulger
- Shoe Fitter
- John Gallaudet
- IMRA Promoter
- Joe Garson
- Joe Youghal
- Cecil Green
- Minor Role
- Tom Hanlon
- Greengrove Race Announcer
- Jerry Hausner
- Spotter in Husing's Booth
- Harry Hayden
- Bainsville Track Owner
- Holmes Herbert
- Benson - Regina's Butler
- Al Hill
- Steward #1
- Art Howard
- Racing Spectator
- Frank Hyers
- Minor Role
- Richard Joy
- Television Announcer
- Arthur M. Loew Jr.
- Studio Production Man
- Leota Lorraine
- Greengrove Race Spectator
- Jack McGrath
- Minor Role
- John McGuire
- Newark Referee
- Harold Miller
- Racing Spectator
- Carlotta Monti
- Minor Role
- William Newell
- Hank Harmon
- Anne O'Neal
- Nurse
- Ernest Ohman
- Minor Role
- Johnnie Parsons
- Driver
- Lee Phelps
- Steward #2
- Tom Quinn
- Nightclub Patron
- Jean Ransome
- Minor Role
- Marilyn Rich
- Minor Role
- Mauri Rose
- Mauri Rose - Indianapolis 500 Driver, Car #31
- Tim Ryan
- Minor Role
- Dick Simmons
- Regina's Radio Show Announcer
- Stephen Soldi
- Racing Spectator
- Bert Stevens
- Race Track Spectator
- Johnny Tolan
- Driver
- William H. Welsh
- Sports Announcer
