约翰·米奇

John Michie

饰：Self - Narrator

Eddie McCann

Eddie McCann

饰：Self - Civil Engineer

里克·D·沃瑟曼

Rick D. Wasserman

饰：Narrator

Mike Ashworth

饰：Self - Transport for London

焦立中

Leroy Chiao

饰：Self - Astronaut

Michael Foale

饰：Self - Astronaut

Ashton Smith

Ashton Smith

饰：Narrator

吉姆·斯坦斯菲尔德

Jem Stansfield

饰：Self - Engineer

George DeVincenzi

饰：Self - Alcatraz Guard 1950 to 1957