UFC 23: Ultimate Japan 2 was a mixed martial arts event held by the Ultimate Fighting Championship on November 19, 1999 at Tokyo Bay NK Hall in Tokyo, Japan.
| Actor | Role |
|---|---|
 Kevin RandlemanSelf | Self |
 Pete WilliamsSelf | Self |
 Pedro RizzoSelf | Self |
| TTsuyoshi KohsakaSelf | Self |
| JJoe SlickSelf | Self |
 Jason DeLuciaSelf | Self |
| EEugene JacksonSelf | Self |
| KKeiichiro YamamiyaSelf | Self |
| KKenichi YamamotoSelf | Self |
| KKatsuhisa FujiiSelf | Self |
| MMasutatsu YanoSelf | Self |
 Daiju TakaseSelf | Self |