UFC Fight Night 18: Condit vs. Kampmann was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on April 1, 2009. The event was broadcast on Spike TV, as a prelude to the premiere of The Ultimate Fighter: United States vs. United Kingdom. The main event featured the debut of former WEC Welterweight Champion Carlos Condit – riding an eight fight win streak – in the main event against Martin Kampmann.
| Actor | Role |
|---|---|
 Martin KampmannSelf | Self |
 Carlos ConditSelf | Self |
 Ryan BaderSelf | Self |
| CCarmelo MarreroSelf | Self |
 Tyson GriffinSelf | Self |
 Rafael dos AnjosSelf | Self |
 Cole MillerSelf | Self |
| JJunie BrowningSelf | Self |
 Gleison TibauSelf | Self |
 Jeremy StephensSelf | Self |
 Ricardo AlmeidaSelf | Self |
 Matt HorwichSelf | Self |
| BBrock LarsonSelf | Self |
| JJesse SandersSelf | Self |
| TTim CredeurSelf | Self |
 Nick CatoneSelf | Self |
 Jorge RiveraSelf | Self |
| NNissen OsterneckSelf | Self |
 Rob KimmonsSelf | Self |
| JJoe VedepoSelf | Self |
 Aaron SimpsonSelf | Self |
 Tim McKenzieSelf | Self |