Characters played by Bruce Cabot
- Frank Marshall
Characters played by Marguerite Churchill
- Nancy Foster
Characters played by Crawford Weaver
- Slim Hewitt
Characters played by Ward Bond
- Don Foster
Characters played by Charles C. Wilson
- Colonel McCollum
Characters played by John Hamilton
- Cummings
Characters played by Arthur Loft
- Gardner
Characters played by Nick Copeland
- Lefty
Characters played by John Tyrrell
- Feeney
Characters played by Mary Alden
- Accident Onlooker
Characters played by Ralph Brooks
- New Postal Inspector
Characters played by George Chesebro
- Foreman
Characters played by Beatrice Curtis
- Secretary
Characters played by Harry Davenport
- Senator Morton
Characters played by Ralph Dunn
- Detective
Characters played by John Elliott
- Postmaster
Characters played by John Gallaudet
- Radio Reporter
Characters played by Bud Geary
- New Postal Inspector
Characters played by Chuck Hamilton
- Townsman
- Klansman
Characters played by Lloyd Ingraham
- Newspaper Man
Characters played by Edward Keane
- Governor
Characters played by Ethan Laidlaw
- Townsman
Characters played by Edward LeSaint
- Breardon
Characters played by Jack Low
- Gus
Characters played by George Magrill
- Townsman
- Klansman
Characters played by Ted Mapes
- Newsstand Owner
Characters played by Ralph McCullough
- Chemist
Characters played by Frank O'Connor
- Mr. McKeever
Characters played by Dennis O'Keefe
- New Postal Inspector
Characters played by Kitty O'Neil
- Townswoman
Characters played by Edward Peil Sr.
- Bradley
Characters played by Hal Price
- Townsman
Characters played by Arthur Rankin
- Mail Clerk
