UFC 48: Payback was a mixed martial arts event held by the Ultimate Fighting Championship at the Mandalay Bay Events Center in Las Vegas, Nevada. The featured contestants of the evening were Ken Shamrock and Kimo Leopoldo, who had met once before in 1996 at UFC 8, with Shamrock reigning victorious.
| Actor | Role |
|---|---|
 Ken KilpatrickSelf | Self |
| KKimo LeopoldoSelf | Self |
 Frank TriggSelf | Self |
 Dennis HallmanSelf | Self |
 Frank MirSelf | Self |
 Tim SylviaSelf | Self |
 Matt HughesSelf | Self |
| RRenato VerissimoSelf | Self |
 Evan TannerSelf | Self |
 Phil BaroniSelf | Self |
 Matt SerraSelf | Self |
 Ivan MenjivarSelf | Self |
 Trevor PrangleySelf | Self |
 Curtis StoutSelf | Self |
 Georges St-PierreSelf | Self |
 Jay HieronSelf | Self |