| Erik Thompson | Narrator (voice) | 
    
    
      | John F. Kennedy | Self (archive footage) | 
    
    
      | Buzz Aldrin | Self (archive footage) | 
    
    
      | Walter Cronkite | Self (archive footage) | 
    
    
      | Neil Armstrong | Self (archive footage) | 
    
    
      | Jim Lovell | Self - Apollo Program Astronaut (voice) | 
    
    
      | John Glenn | Self (archive footage) | 
    
    
      | Michael Collins | Self (voice) | 
    
    
      | Gene Kranz | Self (archive footage) | 
    
    
      | Harrison Schmitt | Self (archive footage) | 
    
    
      | Gordon Cooper | Self (archive footage) | 
    
    
      | Charlie Duke | Self - Apollo Program Astronaut (voice) | 
    
    
      | Fred Haise | Self - Apollo Program Astronaut (voice) | 
    
    
      | Gerry Griffin | Self - Flight Director, Apollo 11 (voice) | 
    
    
      | Gus Grissom | Self (archive footage) | 
    
    
      | Charles Conrad | Self (archive footage) | 
    
    
      | Al Worden | Self - Apollo Program Astronaut (voice) | 
    
    
      | Edward H. White II | Self (archive footage) | 
    
    
      | Joann Morgan | Self - Instrumentation Controller, Apollo 11 (voice) | 
    
    
      | Jay Barbree | Self - NBC Space Correspondent (voice) | 
    
    
      | Walter Cunningham | Self - Apollo Program Astronaut (voice) | 
    
    
      | Bill Anders | Self - Apollo Program Astronaut (voice) | 
    
    
      | Roger B. Chaffee | Self (archive footage) | 
    
    
      | Glynn Lunney | Self - Flight Director, Apollo 11 (voice) | 
    
    
      | Jack King | Self (archive footage) | 
    
    
      | Jerry Schaber | Self - Geologist, Apollo 11 (voice) | 
    
    
      | Kotcho Solacoff | Self (voice) | 
    
    
      | Bob Young | Self (archive footage) | 
    
    
      | Jerry Goodman | Self - Apollo Engineer (voice) | 
    
    
      | Rick Weiss | Self - Propulsion Engineer, Apollo 11 (voice) | 
    
    
      | Bill Carpentier | Self - Flight Surgeon, Apollo 11 (voice) |