Submission Underground 8 took place Sunday, May 12, 2019 with 6 fights at Roseland Theater in Portland, Oregon.
| Actor | Role |
|---|---|
 Jake ShieldsSelf | Self |
 Austin VanderfordSelf | Self |
 Jake EllenbergerSelf | Self |
 Diego SanchezSelf | Self |
 Craig JonesSelf | Self |
 Dennis HallmanSelf | Self |
 Gilbert MelendezSelf | Self |
 Pat HealySelf | Self |
 Fabiano SchernerSelf | Self |
 Matt MitrioneSelf | Self |
 Micah BrakefieldSelf | Self |
| SShaun KiatvongchaSelf | Self |