Gary McCallister was an old pal of John Raglan and also a crooked cop. He was involved with the kidnapping scheme of mafia and the shooting that led to the death of undercover cop Bob Armen and assisted in framing Joe Pulgatti. When Hal Lockwood is transferred to the general population center of their prison, Lockwood finds his cell and kills him, following orders from the unknown boss. McAllister tells Lockwood, "Don't make a mess of it, OK?" before he is killed, showing that he knows, and is resigned to, what is coming. ("Knockout")