Oh Sees, Thee Oh Sees, OCS: these are all the same band, more or less, helmed by John Dwyer. I say “more or less” because AllMusic has broken out “OCS” into its own entry, based on Dwyer’s use of the name for some of his folkier recordings with Brigid Dawson, and that’s not unreasonable. But there’s no good reason to split the “Thee Oh Sees” and “Oh Sees” into separate artists; they really are the same band.