Herman series
From Memory Alpha, the free Star Trek reference
The Herman series was a group of androids who inhabited the planet Mudd. Like most, if not all, of the "masculine" models of Mudd androids, The Herman series pre-dates the accidental arrival of fugitive Harry Mudd. (TOS: "I, Mudd")
The Herman series, only identified in dialog, were established by the Star Trek Concordance to be the series portrayed by uncredited twin brothers Tom and Ted LeGarde.
