Terry MacDonald

Narrator (voice)

John F. Kennedy

Self - President of the United States (archive footage)

جيم لوفل

Self - Captain, NASA Astronaut

Shannon Lucid

Self - NASA Astronaut

Юрий Гагарин

Self - Soviet Cosmonaut (archive footage)

Alan Shepard

Self - NASA Astronaut (archive footage)

Gus Grissom

Self - NASA Astronaut (archive footage)

Герман Титов

Self - Soviet Cosmonaut (archive footage)

Roger K. Crouch

Self - NASA Astronaut

John Glenn

Self - NASA Astronaut (archive footage)