The very definition of "that guy," when I was growing up, my parents could never remember William Schallert's name. It was always, "Hey, it's Patty Duke's daddy." That's pretty much what so many obits are calling him today, too, but he was also Nancy Drew's father, Dobie Gillis's teacher, and if he missed appearing at least once on any classic sixties series, I don't know what it would have been. STAR TREK, THAT GIRL, BEWITCHED, MARCUS WELBY, MD. While his output slowed down as he approached the age of 90, he never stopped working, appearing memorably in TRUE BLOOD in the past decade and a classic, surprisingly blue, performance on STU'S SHOW!