Ronald Reagan
Lt. 'Brass' Bancroft
Ila Rhodes
Pamela Schuyler
Eddie Foy Jr.
Gabby Watters
James Stephenson
Jim Cameron
John Litel
Chief Agent Tom Saxby
Bernard Nedell
Earl 'Ace' Hemrich
Anthony Averill
Lead Henchman Hafer
Rosella Towne
Zelma Warren
Joe Cunningham
Agent Dawson
John Hamilton
Warden Jackson
John Harron
Agent Cliff Durell
Sidney Bracey
John 'Joe' Vicary
Pierre Watkin
Chief of the Secret Service
Richard Bond
Buzzy - San Francisco Radio Operator
Herbert Rawlinson
Adm. A.C. Schuyler
Davison Clark
Deputy Warden
Morgan Conway
Henchman Ed Powell
Alberto Morin
Pedro the Bartender
Raymond Bailey
Henchman Starting Fight [script name: Klune]
Edgar Edwards
Convict Crowley
Eddy Chandler
Capt. King - Highway Patrol
Eumenio Blanco
Mexican Businessman in Bar
John Sinclair
First Tough in Bar Fight
Duke Green
Second Tough in Bar Fight
Paul Panzer
Ivan - an Alien
Jack Wise
Ivan's Alien Pal
Sol Gorss
Border Patrol Pilot
Jack A. Goodrich
Border Patrol Co-Pilot
Lane Chandler
U.S. Border Patrol Officer
George Sorel
Capt. Cortez - Mexican Police
Carlyle Moore Jr.
Glendale Radio Operator
Dave Roberts
Highway Police Announcer (voice)
Frank Mayo
Treasury Agent Manning
Jack Mower
Treasury Agent Aldrich
Stuart Holmes
Agent Gowing
Hal Craig
Ground Superintendent
Jeffrey Sayre
Road Gang Guard
John J. Richardson
Alien - First Flight
Cliff Saum
Alien - First Flight