Investigator John Williams
Chief Investigator Paul Reagan
Margo Wayne
Cmdr. Jackson
Lt. Magrew (as Touch Conners)
Buzz Olin
FBI Agent in Montage (as William R. Klein)
Blonde Woman
Agent Reynolds
Box of Taffy Man at Penn Station
Andy - alias Andre, an agent
Leo Wayne
Agent Manning (uncredited)
Detective (uncredited)
Sheriff Ramirez (uncredited)
Penn Station Counterman (uncredited)
Agent Gray (uncredited)
Elevator Passenger / FBI Agent (uncredited)
Go-Between with Satchel (uncredited)
Pierre Neff (uncredited)
Agent Maurice Leroux (uncredited)
Lindsley - Lab Tech (uncredited)
Sands (uncredited)
Police Captain (uncredited)
Pilot (uncredited)
Dave Norton (uncredited)
Narrator (voice) (uncredited)
Cabaret Singer (uncredited)
Corrigan (uncredited)
Mack (uncredited)
Courier Who Got Bag at Bar (uncredited)
Technician (uncredited)
Undetermined Role (uncredited)
Lifeguard (uncredited)
FBI Agent at Meeting (uncredited)
Sub Chief (uncredited)