- Melissa Arnot
- Self - Climber
- Barry Bishop
- Self - Climber
- Brent Bishop
- Self - Climber
- Norman Dyhrenfurth
- Self - Climber
- Ngawang Gombu
- Self - Climber
- Dave Hahn
- Self - Climber
- Tom Hornbein
- Self - Climber
- Lute Jerstad
- Self - Climber
- Jon Krakauer
- Self - Narrator
- Charley Mace
- Self - Climber
- Reinhold Messner
- Self - Climber
- David Morton
- Self - Climber
- Jake Norton
- Self - Climber
- Willi Unsoeld
- Self - Climber
- Jim Whittaker
- Self - Climber
