Drummer Sim Cain played with the  Rollins Band from 1987 until 1997. Before joining Rollins Band, Sim played in the instrumental trio Gone, alongside future Rollins Band bassist Andrew Weiss and Black Flag guitarist Greg Ginn.  He has also recorded with artists like David Poe, Marc Ribot, David Shea, and played in Elliott Sharp's Terraplane group. Cain appeared on Ween's 2004 album Quebec and performed with blues legend Hubert Sumlin in the early 2000s.