I was thinking the other day (well actually, yesterday to be precise) about successful television actors with beards and/or moustaches. And I was hard pressed to come up with many of either but especially beards.
Basically for beards, I came up with two people on Star Trek the Next Generation, Riker and Warf, and Grizzly Adams on Grizzly Adams (unless you can count Cousin It on the Adams Family).
For moustaches there are quite a few more ranging from Boston Blackie {Boston Blackie} to Thomas Magnum (Magnum P.I.) but not the number I would expect. Of course, there was Gomez Adams on the above mentioned Adams Family and Don Diego Delavega (Zorro).
Kelsey Grammer had a beard on Cheers for a while…remember the “Beard Growing Contest” episode.
There was a guy on Cybil with a beard.
And Don Johnson and Phillip Michael Thomas had that light facial hair on Miami Vice.
I’m assuming, based on your examples, that you’re not limiting this to current series so:
Beards: the father in Family Ties, Pernell Roberts in Trapper John, M.D. And I don’t know if he counts as successful, but Greg Evigan had a beard in My Two Dads. Mr. T in The A-Team.
Moustaches: Hal Linden, Burt Reynolds, Peter Benton in ER (don’t recall the actor’s name).
Frank McGrath (who played the cook) had a beard, and Ward Bond had a moustache in Wagon Train. (Yeah, that’s going a way’s back, but it just came to me… I saw a Western Marathon on TV a month or so ago, OK?)
Lani Tupu (man, you just gotta repeat that over and over again - “Lani Tupu, LaniTupu, Lanitupu…”) from Farscape has a goatee.
Some beards:
Neal Washington (Taurean Blacque) in Hill St. Blues
Isaiah Edwards (Victor French) in Little House on the Prairie
Philip Banks (James Avery) and Geoffrey (Joseph Marcell) in Fresh Prince of Bel Air
Alex Trebek shaves his moustasche and regrows it from time to time. A lot of us facially-hirsute men do that; once you’ve decided to do something (anything) with your facial hair, it becomes a feature (like the hair on the top of your head) that you can style and modify as the mood strikes.
Oh, and while the character of Worf had facial hair, the actor (Michael Dorn) does not.