Oh dang I totally thought this was Potsie
So I'm watching a rerun of Law & Order where Anson Mount guest-stars as a pastor accused of murder... I saw the first name "Anson" in the credits and associated it with Anson Williams who played Potsie Webber on the US TV series "Happy Days" in the 1970s
I was like "dang he's well preserved!" but of course it's not the same guy, they just have the same first name. Disclaimer: it's late at night but I am completely sober :)