Will Smith

Self - Host (archive footage)

Felipe Gómez Gómez

Self - Astrophysicist (archive footage)

Heïdi Sevestre

Self - Glaciologist (archive footage)

Chris Hadfield

Self - Astronaut (archive footage)

Mae Jemison

Self - Astronaut (archive footage)

Rosa Maria dos Santos

Self - Climatologist (archive footage)

Kidane Belay

Self - Salt Trader (archive footage)

Nelson Gadea

Self - Head Doctor, La Rinconada (archive footage)

Jerry Linenger

Self - Astronaut (archive footage)

Jeffrey A. Hoffman

Self - Astronaut (archive footage)

Beth Whitson

Self - Peggy's Mother (archive footage)

Keith Whitson

Self - Peggy's Father (archive footage)

Pak Naspin

Self - Freediver (archive footage)

Peggy Whitson

Self - Astronaut (archive footage)

Nicole Stott

Self - Astronaut (archive footage)

Michael J. Massimino

Self - Astronaut (archive footage)

Abel Méndez

Self - Planetary Astrobiologist (archive footage)

Leland Melvin

Self - Astronaut (archive footage)