That's probably just someone's idea of a joke. In the first episode he was on he was billed as "Bearded Man". So the writers apparently still haven't given his character an actual name. I would think after next week we may know his real name if there's a confrontation between he and Jack, Michael, etc. The important thing is that M.C. Gainey is appearing in the episode and he's the guy who took Walt.
There's also a very interesting tidbit if you read the cast list for the Feb. 1 episode, "Admissions".