
Ralph Bellamy
Insp. Steve Trent
Acting

Shirley Grey
Betty Lane
Acting

Gail Patrick
Helen Stanley
Acting

Kane Richmond
Lee Davis
Acting

Bradley Page
George T. Noel
Acting

Vincent Sherman
Karl Williams
Directing

Phillip Trent
Larry King (as Clifford Jones)
Acting

Lucien Prival
Gibson
Acting

Ward Bond
Jack Baker
Acting

Helen Eby-Rock
Jessie Allen
Acting

Frank O'Connor
Ballistic Expert
Acting

Charles Brinley
Electrician (uncredited)
Acting
![A.S. Byron]()
A.S. Byron
Detective #3 (uncredited)
Acting

Stephen Chase
Wallach (uncredited)
Acting

Jack Cheatham
Motorcycle Officer (uncredited)
Acting

Edmund Cobb
Electrician (uncredited)
Acting

Kernan Cripps
Gateman (uncredited)
Acting

Budd Fine
Guard #1 (uncredited)
Acting

Pat Harmon
Electrician (uncredited)
Acting
![A.R. Haysel]()
A.R. Haysel
Detective #2 (uncredited)
Acting

William Humphrey
Doctor (uncredited)
Acting

Edward Keane
Mr. Richardson - Studio Manager (uncredited)
Acting

Sam Lufkin
Motorcycle Officer (uncredited)
Acting
![Buck Mack]()
Buck Mack
Electrician (uncredited)
Acting

Frank Mills
Property Man (uncredited)
Acting
![Bruce Mitchell]()
Bruce Mitchell
Guard #2 (uncredited)
Acting
![Earl Pingree]()
Earl Pingree
Detective #1 (uncredited)
Acting

Hal Price
Reilly (uncredited)
Acting
![Ky Robinson]()
Ky Robinson
Jennings (uncredited)
Acting
![Dick Rush]()
Dick Rush
Detective #4 (uncredited)
Acting

Lee Shumway
Radio Announcer (uncredited)
Acting

Cap Somers
Electrician (uncredited)
Acting
![Ned Winchester]()
Ned Winchester
Double (uncredited)
Acting