UFC 73: Stacked was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC). It took place on July 7, 2007 at the ARCO Arena in Sacramento, California and featured a total of nine bouts: four on the preliminary card and five on the main card. The main event was Anderson Silva defending the UFC Middleweight Championship against Nathan Marquardt.
| Actor | Role |
|---|---|
 Anderson SilvaSelf | Self |
 Nate MarquardtSelf | Self |
 Tito OrtizSelf | Self |
 Rashad EvansSelf | Self |
 Sean SherkSelf | Self |
 Hermes FrancaSelf | Self |
 Antonio Rodrigo NogueiraSelf | Self |
 Heath HerringSelf | Self |
 Kenny FlorianSelf | Self |
| AAlvin RobinsonSelf | Self |
 Stephan BonnarSelf | Self |
 Mike NickelsSelf | Self |
 Jorge GurgelSelf | Self |
| DDiego SaraivaSelf | Self |
 Chris LytleSelf | Self |
| JJason GilliamSelf | Self |
 Frankie EdgarSelf | Self |
 Mark BocekSelf | Self |