William Henry
— Agent Phil Sherrin
Pamela Blake
— Mrs. Judith Palmer
Robert Shayne
— Chief Agent Charles Stuart
Lyle Talbot
— Agent Johnson
Movita
— Lolita Martinez / Montez (as Movita Castaneda)
Joe Turkel
— Jack 'Sneeze' Norton
Lori Talbott
— Betty Herbert - elevator operator
John Laurenz
— Rodriguez - Mexican Agent
Ben Moselle
— Mack
George Eldredge
— Wade Brandon
Dennis Moore
— Harry
Noel Cravat
— Rocky
Paul Hoffman
— George Hodge - garage 'front man'
Bill Edwards
— Agent George Palmer
William F. Leicester
— Frankie Lanessi
William Bailey
— Man in Elevator (uncredited)
Myron Healey
— The Tracking Device Specialist (uncredited)