UFC on FX 4: Maynard vs. Guida was a mixed martial arts event held by the Ultimate Fighting Championship on June 22, 2012 in Revel Casino in Atlantic City, New Jersey. The main event consists of a five-round, non-championship, bout between Clay Guida and Gray Maynard.
| Actor | Role |
|---|---|
 Gray MaynardSelf | Self |
 Clay GuidaSelf | Self |
 Sam StoutSelf | Self |
 Spencer FisherSelf | Self |
 Brian EbersoleSelf | Self |
 TJ WaldburgerSelf | Self |
 Cub SwansonSelf | Self |
 Ross PearsonSelf | Self |
 Ricardo LamasSelf | Self |
 Hatsu HiokiSelf | Self |
 Ramsey NijemSelf | Self |
 C.J. KeithSelf | Self |
| RRick StorySelf | Self |
 Brock JardineSelf | Self |
 Steven SilerSelf | Self |
 Joey GambinoSelf | Self |
 Chris CamozziSelf | Self |
 Nick CatoneSelf | Self |
 Matt BrownSelf | Self |
| LLuis RamosSelf | Self |
 Dan MillerSelf | Self |
| RRicardo FunchSelf | Self |
 Ken StoneSelf | Self |
 Dustin PagueSelf | Self |