I just realized another charactere i take after at certain times... Mr. Friendly. (with beard) I go in spurts where I get lazy and don't shave for a couple weeks, and boom....there's a nice scruffy beard.. not as long as his and darker, but none of the other characters have more than 5 o'clock shadow so I had to go with him.
None of them have my facial hair when I'm shaved though. I keep a little chin piece that I've taken to growing a bit longer now for a change of pace.