I recently saw this movie for the first time in 10 years, and was thrilled to see F.C (can't be bothered to check his real name) as Rico Patrone, a NY subway transport cop, and Walter Matthau's assistant. Mostly he is just sat at a desk in shirtsleeves, but at the end, when he is dressed in his uniform, he looks hilarious.
Also saw Peterman on a repeated Frasier, as the author who Frasier made cry: in this episode, Frasier refers to meeting the character in Cheers. Did this happen on the show, or is this just invented background?