James Franciscus

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

as Professor Hammond (archive footage)

Story

as Victor Khudenko

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 Rush

as Lucky

as Daniel Corban

as Chaplain Andrew Jensen

as Sammy Stone

as Dr. Lawrence Maddox

as John Mason • 1 eps

as Self • 1 eps

as Dick Carriage • 2 eps

9 eps

as Self • 1 eps

as Benjamin Elliot • 14 eps

as Paul Dover • 1 eps

as Mike Longstreet • 23 eps

1 eps

as Charles Burnett • 1 eps

as John Novak • 60 eps

as Pfc. Charles Harris • 1 eps

as Self • 3 eps

as Self • 1 eps

as Russ Andrews • 13 eps

1 eps

as Stan Fisher • 1 eps

as Lt. Mueller • 1 eps

as Tom Grover • 1 eps

as Quinn Jackson • 1 eps

1 eps

1 eps

as Jimmy Halloran • 39 eps