威尔·史密斯
饰 Self - Host (archive footage)
Felipe Gómez Gómez
饰 Self - Astrophysicist (archive footage)
Heïdi Sevestre
饰 Self - Glaciologist (archive footage)
Chris Hadfield
饰 Self - Astronaut (archive footage)
Mae Jemison
饰 Self - Astronaut (archive footage)
Rosa Maria dos Santos
饰 Self - Climatologist (archive footage)
Kidane Belay
饰 Self - Salt Trader (archive footage)
Nelson Gadea
饰 Self - Head Doctor, La Rinconada (archive footage)
Jerry Linenger
饰 Self - Astronaut (archive footage)
Jeffrey A. Hoffman
饰 Self - Astronaut (archive footage)
Beth Whitson
饰 Self - Peggy's Mother (archive footage)
Keith Whitson
饰 Self - Peggy's Father (archive footage)
Pak Naspin
饰 Self - Freediver (archive footage)
Peggy Whitson
饰 Self - Astronaut (archive footage)
Nicole Stott
饰 Self - Astronaut (archive footage)
Michael J. Massimino
饰 Self - Astronaut (archive footage)
Abel Méndez
饰 Self - Planetary Astrobiologist (archive footage)
Leland Melvin
饰 Self - Astronaut (archive footage)
