Calificación
Reparto

Terry MacDonald
Narrator (voice)

John F. Kennedy
Self - President of the United States (archive footage)

Jim Lovell
Self - Captain, NASA Astronaut

Shannon Lucid
Self - NASA Astronaut

Yuri Gagarin
Self - Soviet Cosmonaut (archive footage)

Alan Shepard
Self - NASA Astronaut (archive footage)

Gus Grissom
Self - NASA Astronaut (archive footage)

German Titov
Self - Soviet Cosmonaut (archive footage)

Roger K. Crouch
Self - NASA Astronaut

John Glenn
Self - NASA Astronaut (archive footage)