Has Roadblock got a post-credit scene?

Who directed Roadblock, and who is in it

Filmmakers

• HD Harold Daniels Director
• SF Steve Fisher Screenplay
• GB George Bricker Screenplay
• RH Richard H. Landau Story
• DM Daniel Mainwaring Story
• PS Paul Sawtell Composer

Cast

• Charles McGraw Joe Peters
• Joan Dixon Diane Morley
• Lowell Gilmore Kendall Webb
• Louis Jean Heydt Harry Miller
• Milburn Stone Ray Egan
• Joseph Crehan Thompson (uncredited)
• Peter Brocco Bank Heist Man (uncredited)
• JB John Butler Hotel Clerk (uncredited)
• Franklyn Farnum Elevator Passenger (uncredited)
• GH George Hoagland Bar Patron (uncredited)