Bobsleigher Adele Nicoll, ex-footballer Ashley Cain, former rugby player Heather Fisher, MMA star Leah McCourt, Muay Thai fighter Nesrine Dally, Olympic gymnast Nile Wilson and fitness trainers Tyrone Brennand and Waz Ashayer set out to change eight contestants' lives - and help them push themselves to their absolute limit. Presented by Jordan North and Paul Olima.
| Name | Type | Role | |
|---|---|---|---|
| Ashley Cain | Guest Star | Himself | |
| Nile Wilson | Guest Star | Himself | |
| Jordan North | Actor | Presenter |