The world strongest man learns how to embrace his mental health challenges by confronting his inner demons and dealing with his biggest failure to date which ultimately changes his life.
| Actor | Role |
|---|---|
 Eddie HallSelf | Self |
 Arnold SchwarzeneggerSelf | Self |
 Sylvester StalloneSelf | Self |
 Dolph LundgrenSelf | Self |
 Gabriel LunaSelf | Self |
| AAlex NeedhamEddie Hall (19) | Eddie Hall (19) |
| RRiley MatonEddie Hall (6) | Eddie Hall (6) |
 Petra MarkhamEddie's nan | Eddie's nan |
 Katie TaylorSelf | Self |
| TThomas FrereDoctor | Doctor |
| JJoe SantryCigar Biker | Cigar Biker |
| KKatie LunaSelf | Self |
| PPaul FlanaganLloyd | Lloyd |
| NNuakai AruPool Cue Biker | Pool Cue Biker |
| JJulie Rose SmithHelen Hall | Helen Hall |
| LLuke MortonSteve Hall | Steve Hall |
| LLaura SouthallSelf | Self |
 Hafþór Júlíus BjörnssonSelf | Self |
 Bill KazmaierSelf | Self |
 Sugar Ray LeonardSelf | Self |
 Martins LicisSelf | Self |
 Paddy McGuinnessSelf | Self |
 Ray NicholasSelf | Self |
 Khabib NurmagomedovSelf | Self |
 Georges St-PierreSelf | Self |
 Tia-Clair ToomeySelf | Self |
| LLee MyersSelf | Self |
| CColin BryceSelf | Self |
| MMo ChaudrySelf | Self |
| LLouie DeeSelf | Self |