Tom Conway
— Roger Kingsley
Hillary Brooke
— Mary Webb
Eddie Marr
— Johnny Gregg
Dan Riss
— Lt. Fenton
John Gallaudet
— Detective Chief Brownell
Jack Kruschen
— Detective Sergeant Quinn
Walter Kingsford
— Mr. Markewell
Paul Livermore
— Hal Speel
Aline Towne
— Peggy Speel
Helen Van Tuyl
— Maggie, the elderly accomplice
Edmund Cobb
— Detective Lieutenant Cobb, with pipe
Truman Bradley
— Narrator (voice)
Leo Cleary
— Mr. Sheridan
Roy Engel
— Store Detective Walsh
Charles Collins
— Charlie (as Charlie Collins)
Yvonne Peattie
— Gertrude Palmer
Joel Allen
— Frank Palmer
Helen Chapman
— Joey Ridgway
John Phillips
— Allen Ridgeway
Paul Guilfoyle
— William Pope
Pamela Duncan
— Braddock's Nurse