Director/a
Fred C. Brannon
DIRECTOR/A
Yakima Canutt
Reparto (por orden de créditos)
Clayton Moore
Agent Ted O'Hara
Roy Barcroft
Vic Murkland
Ramsay Ames
Frances Blake
Gil Frye
Duke Graham
Tom Steele
John Parker (Lanky Thug) [Chs. 2, 6]
Dale Van Sickel
Fred Brent (Thug) [Ch. 1-2]
Edmund Cobb
R.J. Cook
Stanley Price
Robert 'Doc' Benson
Jack O'Shea
Slater - Benson's Aide
Barry Brooks
George (Orderly) [Ch. 8]
Douglas Aylesworth
Det. Hayden
Frank O'Connor
Dist. Atty. MacLain [Ch. 12]
Dian Fauntelle
MIss Stewart [Ch. 3]
Eddie Acuff
'Fiddler' - Used Car Salesman [Chs.3-4]
Ken Terrell
Kelsey (Thug) [Ch. 1]
Robert Barron
Garson - Tunnel Detonator Thug [Ch. 1] (uncredited)
John Crawford
Duke - Dictaphone Boobytrap Thug [Ch. 5] (uncredited)
John Daheim
Henchman Kramer [Ch. 8] (uncredited)
Arvon Dale
Moore - Fur-Truck Driver [Ch. 7] (uncredited)
George Douglas
Prison Ward Room Guard [Ch. 1] (uncredited)
Duke Green
Nichols - Museum Thug [Ch. 10] (uncredited)
James Linn
Bailey - Payroll Messener [Ch. 8] (uncredited)
Carey Loftin
Hodge - Cook's Killer [Ch. 5] (uncredited)
George Magrill
Staley - Trent's Pal in Apartment Looting [Ch. 3] (uncredited)
Tom McDonough
Al - Arresting Officer [Ch. 12] (uncredited)
Tom Monroe
2nd Joe - Bomber Pilot Thug [Ch. 8] (uncredited)
Gil Perkins
Finch - Welder Thug [Ch. 7] (uncredited)
Charles Regan
Hinkey - Finch's Pal [Ch. 7] (uncredited)
Matty Roubert
Shipyard Foreman [Ch. 4] (uncredited)
David Sharpe
Trent - Apartment Thug [Ch. 3] (uncredited)
Charles Sullivan
Morgan - Roadblock Officer [Ch. 7] (uncredited)
Glenn Turner
Dorsey - Laundry Trustee [Ch. 1] (uncredited)
Phil Warren
Special Deputy Roberts [Ch.9] (uncredited)
Russ Whiteman
Det. Baxter [Ch. 11] (uncredited)
Robert J. Wilke
Steele - Phony Detective [Ch. 5] (uncredited)
Bud Wolfe
Foy - Motorcycle Thug [Ch. 1] (uncredited)