Lt. 'Brass' Bancroft
Ronald Reagan
Pamela Schuyler
Ila Rhodes
Agent Dawson
Joe Cunningham
Warden Jackson
John Hamilton
Agent Cliff Durell
John Harron
John 'Joe' Vicary
Sidney Bracey
Chief of the Secret Service
Pierre Watkin
Dick Wayne
Larry Williams
Buzzy - San Francisco Radio Operator
Richard Bond
Adm. A.C. Schuyler
Herbert Rawlinson
Deputy Warden
Davison Clark
Henchman Ed Powell
Morgan Conway
Gabby Watters
Eddie Foy Jr.
Pedro the Bartender
Alberto Morin
Henchman Starting Fight [script name: Klune]
Raymond Bailey
The Turnkey
Henry Otho
Convict Crowley
Edgar Edwards
Convict Bartell
Al Lloyd
Guard Cooper
Pat O'Malley
Capt. King - Highway Patrol
Eddy Chandler
Mexican Businessman in Bar
Eumenio Blanco
Drunk at Bar
Nat Carr
First Tough in Bar Fight
John Sinclair
Jim Cameron
James Stephenson
Second Tough in Bar Fight
Duke Green
Ivan - an Alien
Paul Panzer
Ivan's Alien Pal
Jack Wise
Border Patrol Pilot
Sol Gorss
Border Patrol Co-Pilot
Jack A. Goodrich
U.S. Border Patrol Officer
Lane Chandler
Waiter
Glen Cavender
Capt. Cortez - Mexican Police
George Sorel
Agent Harper
Don Turner
Glendale Radio Operator
Carlyle Moore Jr.
Chief Agent Tom Saxby
John Litel
Highway Police Announcer (voice)
Dave Roberts
Treasury Agent Manning
Frank Mayo
Treasury Agent Aldrich
Jack Mower
Agent Gowing
Stuart Holmes
Ground Superintendent
Hal Craig
Road Gang Guard
Jeffrey Sayre
Guard
Harry Hollingsworth
Alien - First Flight
John J. Richardson
Cliff Saum
Doc
Frank M. Thomas
Earl 'Ace' Hemrich
Bernard Nedell
Joe LeRoy
John Ridgely
Lead Henchman Hafer
Anthony Averill
Zelma Warren
Rosella Towne
Director
Noel M. Smith
Sound
Dolph Thomas
Art Direction
Ted Smith
Director of Photography
Ted D. McCord
Editor
Doug Gould
Costume Design
Howard Shoup
Other
W. H. Moran
Screenplay
Raymond L. Schrock