KOTC 23: Sin City was an event held on May 16, 2003 at the Orleans Hotel Casino in Las Vegas, Nevada, United States.
| Actor | Role |
|---|---|
| EEric PeleSelf | Self |
| DDan ChristisonSelf | Self |
 Dan SevernSelf | Self |
| CCory TimmermanSelf | Self |
 Jeremy HornSelf | Self |
 Vernon WhiteSelf | Self |
| RRonald JhunSelf | Self |
 Shonie CarterSelf | Self |
 Joe StevensonSelf | Self |
 Thomas DennySelf | Self |
| AArt SantoreSelf | Self |
| JJoe CrillySelf | Self |
 Diego SanchezSelf | Self |
| MMichael GuymonSelf | Self |
| BBryan PardoeSelf | Self |
| BBrent StevensSelf | Self |
| BBobby GamboaSelf | Self |
| DDave RivasSelf | Self |