UFC 43: Meltdown was a mixed martial arts event held by the Ultimate Fighting Championship on June 6, 2003, at the Thomas and Mack Center in Las Vegas, Nevada. Headlining the card was the Interim Light Heavyweight Championship match between Randy Couture and Chuck Liddell.
| Actor | Role |
|---|---|
 Randy CoutureSelf | Self |
 Chuck LiddellSelf | Self |
| KKimo LeopoldoSelf | Self |
 Tank AbbottSelf | Self |
 Vitor BelfortSelf | Self |
| MMarvin EastmanSelf | Self |
 Vernon WhiteSelf | Self |
 Ian FreemanSelf | Self |
 Frank MirSelf | Self |
 Wes SimsSelf | Self |
 Pedro RizzoSelf | Self |
 Tra TelligmanSelf | Self |
 Falaniko VitaleSelf | Self |
 Matt LindlandSelf | Self |
| YYves EdwardsSelf | Self |
| EEddie RuizSelf | Self |