Submission Underground 15 took place Sunday, June 21, 2020 with 9 fights in Portland, Oregon.
| Actor | Role |
|---|---|
 Mason FowlerSelf | Self |
 Roberto JimenezSelf | Self |
 Craig JonesSelf | Self |
| GGabriel CheccoSelf | Self |
 Amanda LoewenSelf | Self |
 Jessica EyeSelf | Self |
 Hunter ColvinSelf | Self |
 Kody SteeleSelf | Self |
 Adam BradleySelf | Self |
 Nathan OrchardSelf | Self |
| WWarren BrooksSelf | Self |
 Andy VarelaSelf | Self |