A government agent investigates the use of illegal amphetamines among long-haul truck drivers.
Peter Graves
Agent / Tom Kaylor
Mala Powers
Valerie 'Val' Owens
Chuck Connors
Mink Reynolds
Merry Anders
Amy 'Miss Diesel of 1958' Phillips
Roy Engel
Wally Morse
Robert B. Williams
'Dunc' Clayton
Harry Lauter
Steve Hummel / Mr. Brown
Pete Kooy
Payson
Robert Christopher
Lennie Owens
Gordon Armitage
Benjie Bancroft
Claire Carleton
Mabel (uncredited)
Bud Cokes
Roy Damron
Club Patron (uncredited)
John Dierkes
George Ford
Diner Patron (uncredited)
Larry Mancine
Kathy Marlowe
Thomas Martin
Paul Maxwell
Doctor (uncredited)
John Mitchum
Handler (uncredited)
Charles Postal
Gloria Rhoads
Robert Shayne
Frank Ainsley (uncredited)
Fred Sherman
Howard (uncredited)
Joseph M. Newman
Director
John McGreevey
Screenplay
Joseph Kish
Set Decoration
Richard V. Heermance
Producer
William Austin
Editor
Carl E. Guthrie
Director of Photography
Robert Wiley Miller
Original Music Composer
Alice Monte
Hairdresser
Emil Newman
Dave Milton
Art Direction
Emile LaVigne
Makeup Artist
Milt Rice
Special Effects