Ed Kemmer

as Self

as Stewart

as Harry Stone

as Pilot (uncredited)

as Lt. Tracey

as Eddie Thorpe

as Captain Fenton

as Peter Brett

as Caesar (as Edward Kemmer)

as Dr. Curtis

as Jake Wiley

as Sheriff Jesse Wilks

as Flight Engineer

as Roger Wiley

as Major Harper

as Dr. Jethro Manning

as Chuck Lawson

as Lt. Com. Don Tyson

as Dr. Frank Bishop

as Frank Paige

as Aben Starr

as Adam Smith / William Davis

as Art Kingman

as Robert Wilcox

as Wayne Brooks

as Dennis P. Dennis

as Clete Overton

as Roger Porter

as Leslie Hall

as Sheriff Mike Collins

as Joe Wilkes

as Frank Sonnett

as Sonny Grover

as Charlie Rains

as Ben Verber

as Lou Paxon

as Jefferson B. 'Jef'f' Ellis

as Paul Torrance

as Maj. S. V. Bingham, Jr.

as Buzz Corey

as Jefferson

as Ted Van Allen