Gibson was born James Bateman and went to college with Jon Voight, with whom he created a comedy team. Voight claims to have given Gibson his stage name as a tribute to Norwegian poet Henrik Ibsen (say it out loud with a Southern accent).
He was definitely one of those "oh, that guy" actors that you know, but can't place. Allow us to assist you.
Among countless other roles:
-He had a recurring gig as a Southern poet on Rowan & Martin's Laugh-In.
-He was the obsequious country star Haven Hamilton in Robert Altman's Nashville.
-He played Thurston Howell, the creepy guy who hits on William H. Macy in the bar in Paul Thomas Anderson's Magnolia.
-He was the not-so-easily offended Father O'Neill in Wedding Crashers.
-He played a judge on Boston Legal for the last four seasons of the show's run.
Right, that guy. R.I.P.