as Lou

as

as Edward Grant

as Marshall MacGill

as

as Taggart

as Herb Bremen

as Edward Grant

as Warren Avery

as

as Harry Stillwell

as

as

as Dr. Elliot Snow

as

as Ty Shorter

as Fred Gesslin

as Atar

as Jason Monroe

as Dr. Peter James

as Larry Fallon

as

as Alan Grant

as Capt. Topping

as Commander Kirk

as Brad Davies

as Darcy

as Paul Silvan

as

as Martin Forester

as

as

as Gil Turner

as

as

as Art Miller

as E-2

as Michael Cannon

as Ken Palmer

as Simmons

as

as Charles Irwin

as Wallis

as Lt. Dexter

as Capt. Coleman

as Jason Grenoble

as

as

as

as Ramón

as

as Maj. Dan Keller

as Walter Townsend

as Ray Dunson

as

as Dirk

as Rael

as Ramon

as Allen Bennett

as Captain Thomas

as Commander Beech

as Colter

as George Akers

as Garret Hamilton

as

as Professor Joseph Howe

as Pvt. Jim Culley

as Sheriff Harry Lundy

as Dr. Conrad

as Dr. Bill Cortner (as Herb Evers)

as

as Steve Janos

as

as

as Pitcairn

as Sheriff Blackie Faulkner

as Rick Leyton

as George Tess

as Tom Blackwell

as J.D. Lambert

as

as

as Stuart Benton

as Clint Robert Miller

as Roy Galen

as

as Ben

as Collie

as Charlie Ross

as

as

as Bit Role (uncredited)