James Franciscus

as Nasa Archive Storyteller (archive footage from 'Seeds of Discovery', 1970)

as Professor Hammond (archive footage)

as Victor Khudenko

as John Mason

as John Mason

as Moke Blue

as John Fitzgerald Kennedy

as Peter Benton

as Steve Fulton

as Bob Spangler

as Paul Diller

as Jimbo

as Moses Brody

as Harry Scott

as Dick Carriage

as Mark Powers

as Conrad Morgan

as President James Cassidy

as Dick Carriage

as Rush

as Lucky

as Daniel Corban

as Chaplain Andrew Jensen

as Sammy Stone

as Self

as Dr. Lawrence Maddox

as Jonathan Livingston Seagull (voice)

as Benjamin Elliot

as Gil Davenport

as Paul Dover

as Mike Longstreet

as Mike Longstreet

as Carlo Giordani

as Clay Howard

as Brent

as Lt. Comdr. Jeffords, R.N.V.R.

as Clayton Stone

as Tuck Kirby

as Louis Coleman

as 2nd Lt. H. Kalasch

as Dr. Matthew Tregaskis

as Charles Burnett

as Mitchell Flynn

as Youngblood Hawke

as Larry Martin

as John Novak

as Maj. Hoffman

as Pfc. Charles Harris

as Self

as Pvt. James B. Sorenson

as Self

as Russ Andrews

as Stan Fisher

as Rick Leyton

as Lt. Mueller

as Tom Grover

as Quinn Jackson

as Eddie Baxter

as Jimmy Halloran

as Tom Nelson

as Johnny Doyle

as William Tyre

as Ben Kendall

as Tom Doane

as Bill Taylor

as Brass

as Johnny

as Norstad