Bruce Joyner with Mark Neill and Dave Boyle initiated the Unknowns in 1980, when moving from Georgia to Los Angeles; Bruce left by the end of 1982. They reformed in 1991, with Craig Packam on drums, for a european tour (and New Rose records anniversary gig), then Bruce left to focus on collaborating with Out Of The Fire, and also because suffering some health problems.
Bruce Joyner & the Unknowns makes the definite case that the band was composed of the lost geniuses of early-'80s SoCal punk. The Cramps might be a comparison point, but there's less campy humor mixed in with the energy; Joyner in particular isn't out to raise ghoulish smiles so much as he's out to raise good-natured hell. If anything, Joyner and company predict where Chris Isaak would find a spot to dwell in some years later, though with less clear sound and more smoky rampage.