RIP AL Molinaro aka Murray the Cop
He may have been more well-known for playing "Al" on Happy Days, but I will never forget the scenes when he'd show up at their door and they'd open up the peephole to see who it was and his nose would be sticking through. He was extremely funny, especially when Oscar wouldn't take him seriously as a cop. - RIP Al.
I also loved the episodes when they'd play cards - "Speed" the degenerate gambler was great too, but I can't remember who else was in those games? Speed, Oscar, and Murray I recall, but was it also Roy, Vinnie and any others?