Douglas Kennedy as Cliff Roberts, aka Jack Granger

Emory Parnell as Capt. Duncan

William Phillips as Roy Snead

Don C. Harvey as Lead Guard Langley

Harry Cheshire as Editor Daniel "Pop" O'Donnell

Marjorie Lord as Rita McKelvey

Thurston Hall as John McKelvey, news publisher

Billy Lechner as Eddie Jones, convict with sore foot

Larry Steers as Committee Chairman

Herbert Rawlinson as Senator Holden

George Eldredge as Guard Adams

Rusty Wescoatt as Guard Yates

William Tannen as Harry Cleaver

Rick Vallin as Mr. Dennison

Frank Wilcox as Lloyd Killgallen (uncredited)

Dorothy Vaughan as Mrs. Briggs (uncredited)

Paul E. Burns as Dr. Evans (uncredited)

William Fawcett as Zeke (uncredited)