I noticed that you don't have him listed correctly as the character "Barney" in the episode "Judging Books by Covers" which aired in 1971. Also, I show that he was in 8 episodes from 1971 to 1976. The last 7 episodes he was cast as cab driver Bert Munson. It's funny but I've probably watched ALL of these episodes at one point or another in my life and I can't seem to remember Billy Halop (One of the original Dead End Kids from 1938) as Bert Munson. I've been waiting to see one of his episodes on Nick at Nite. HHHMMMMMMmmmm!!!!

Barney character played by Halop in this early episode of the series is the Barney Hefner character played later in the series by Allan Melvin. Melvin played Sam the Butcher on the Brady Bunch. Anyone know or not?

Halop played "Munson" often on All in the Family. Check out the Sammy Davis Jr. episode. He's in that one.

he also wrote a book called theres no dead end in wich he talked about his problems with booze and in in iinteresting side note he also worked as a male nurse