- Money, Dear Boy: Not surprisingly, this comic was nothing more than a marketing gimmick to promote Warrior's big ego. At one point, an ad was posted for artists who were willing to work on the comic without any pay.
- Cast the Expert: Koba is played by Kurt Angle, who is not only a professional wrestler (WWE, TNA and indies), but also an Olympic gold medalist in wrestling.
- The Danza: Tom Hardy as Tommy Conlon; Frank Grillo as Brendan's trainer Frank Campana.
- Descended Creator: Director Gavin O'Connor plays the man who financed the tournament.
- Fake Nationality:
- Retroactive Recognition: Frank Campana is played by Frank Grillo, who was not well known at the time but would go on to play Crossbones in the Marvel Cinematic Universe.
- Mad Dog's trainer? None other than Agent Sitwell.