The true story of Joe Simpson and Simon Yates' disastrous and nearly-fatal mountain climb of 6,344m Siula Grande in the Cordillera Huayhuash in the Peruvian Andes in 1985.
| Actor | Role |
|---|---|
 Brendan MackeyJoe Simpson | Joe Simpson |
 Nicholas AaronSimon Yates | Simon Yates |
 Ollie RyallRichard Hawking | Richard Hawking |
| JJoe SimpsonHimself | Himself |
| RRichard HawkingHimself | Himself |
| SSimon YatesHimself | Himself |