Dr. Rhodes
Dennis Morgan
Johnny Dutton (bush pilot)
Jefferson Jones
Paul Collins
Tommy Randolph
Peter Kingsmill
Self
David Campbell
'Rickey' Mayberry
Dr. Ben Halleck
Wyn Strafford
Corky 'Cork' Jones
Col. Robert Lee Scott
Dan Merrill
Chick Farber
Steven Ross
Jim Bridger
Bill Craig
Dr. Jonas Pettingill
Cole Younger
Chuck Thompson (as Stanley Morner)
Sam Morley
Mike McGann
Dennis Morgan (uncredited)
Paul Hudson / El Khobar
Self (archive footage) (uncredited)
James Wylie
Rodney Trask
Sgt. David Stewart
Tommy Ashley
John Keith / Sgt. Derry Conniston
Chauncey Olcott
Marc Challon
Bradford "Brad" E. Collins
Timothy L. "Biff" Grimes
Tommy McCabe
Joe Plummer
Jack Norworth
Galton
Steve Carroll
Angus Ferguson
Self
Prince Henry
Vince
Jim Dolan
Thomas Rufus 'Tom' Collier III
Cagey Miller
Tommy
Lieutenant Ames
(archive footage)
Marine 2nd Lt.
Bob Lansing
Paul Taggart
The Bridegroom (uncredited)
First Mate Rogers (as Richard Stanley)
Chrystal Club Singer (uncredited)
Self
William Douglas
Stage Singer in "Pretty Girl" Number
Lieutenant
Mike Flagler
Tour Guide
Dinny Logan
Self (uncredited)
Self
Self
Self
Self
Western Hero (clip from "Ride, Cowboy, Ride", 1939) (uncredited)
Dennis Roberts
Roger Duane
Dennis O'Finn
Self
Dennis Chase
Steve Brian