This episode marks the first appearance of Paul Genge in the recurring role of Lt. Byrnes.
Alvy Moore, who plays a hit man in this episode, is best known as goofy county agent Hank Kimball on Green Acres. Moore would return in Step Forward.
Barbara Stuart's best known TV role is that of Bunny Oleson, Sgt. Carter's girlfriend, on Gomer Pyle, USMC.
Brendan: Quinn's friends might wanna know who really put him in the chair.
Morgan: They might at that. Why don't you tell 'em?
Carella: What are you doing back?
Brendan: I'm looking for an honest cop. They're hard to find.
Carella: Everybody has their ups and downs. Even crooks.
Meyer: (about Brendan) Wouldn't it save a lot of money to throw this clown in a cell?
Havilland: (to Morgan) We kept Quinn's old cell warm for you.