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

Mike Longstreet (archive footage)

Professor Hammond (archive footage)

Victor Khudenko

John Mason

Moke Blue

John Fitzgerald Kennedy

Peter Benton

Steve Fulton

Bob Spangler

Paul Diller

Jimbo

Moses Brody

Harry Scott

Dick Carriage

Mark Powers

Conrad Morgan

President James Cassidy

Rush

Lucky

Daniel Corban

Chaplain Andrew Jensen

Sammy Stone

Dr. Lawrence Maddox

Jonathan Livingston Seagull (voice)

Gil Davenport

Mike Longstreet

Carlo Giordani

Clay Howard

Brent

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

Clayton Stone

Tuck

Louis Coleman

2nd Lt. H. Kalasch

Dr. Matthew Tregaskis

Youngblood Hawke

Maj. Hoffman

Pvt. James B. Sorenson

Rick Leyton

Eddie Baxter

Johnny Doyle