I saw on his website that he was in, "the Deadly Assassin" in 1975. He played one of the guards that were dressed in red and white. He and another guard ran into the Doctor on one of his walkabouts. And in, "the Face of Evil" he played a man in a loin cloth that was going to kill Leela but he was shot first.
It's good to see a post from someone that was on the set with Liz and Tom. Pretty cool.
At the end of tonights new Doctor Who show they had a short clip of Liz Sladen waving good bye.