UFC on Fox 3: Diaz vs. Miller was a mixed martial arts event held by the Ultimate Fighting Championship on May 5, 2012 at the IZOD Center in East Rutherford, New Jersey.
| Actor | Role |
|---|---|
 Nate DiazSelf | Self |
 Jim MillerSelf | Self |
 Johny HendricksSelf | Self |
 Josh KoscheckSelf | Self |
 Alan BelcherSelf | Self |
 Rousimar Christian PalharesSelf | Self |
 Lavar JohnsonSelf | Self |
 Pat BarrySelf | Self |
 Michael JohnsonSelf | Self |
 Tony FergusonSelf | Self |
 John DodsonSelf | Self |
 Tim ElliottSelf | Self |
 John HathawaySelf | Self |
 Pascal KraussSelf | Self |
 Louis GaudinotSelf | Self |
 John LinekerSelf | Self |
 Danny CastilloSelf | Self |
 John CholishSelf | Self |
 Dennis BermudezSelf | Self |
 Pablo GarzaSelf | Self |
 Roland DelormeSelf | Self |
| NNick DenisSelf | Self |
 Karlos VémolaSelf | Self |
 Mike MassenzioSelf | Self |