Cast 10

1. Terry MacDonald

   Narrator (voice)

2. 

   John F. Kennedy

   Self - President of the United States (archive footage)

3. 

   Jim Lovell

   Self - Captain, NASA Astronaut

4. Shannon Lucid

   Self - NASA Astronaut

5. 

   Yuri Gagarin

   Self - Soviet Cosmonaut (archive footage)

6. Alan Shepard

   Self - NASA Astronaut (archive footage)

7. Gus Grissom

   Self - NASA Astronaut (archive footage)

8. German Titov

   Self - Soviet Cosmonaut (archive footage)

9. Roger K. Crouch

   Self - NASA Astronaut

10. John Glenn

    Self - NASA Astronaut (archive footage)

Crew 10