Captain H.M. "Howlin' Mad" Murdock is a character from The A-Team. He is the Team's pilot, and it's anybody's guess whether he's as insane as his nickname suggests. Despite his quirks, he functions very well within the Team and on missions.
Murdock has shown some ability to notice and remember agents who PPC A-Team fics--even after being neuralyzed. Maybe his insanity (or perhaps "insanity") allows him to accept more unusual things than most people. [source, please!] At one point, he was deputized by Agent Allison (who was later disciplined for doing this).
Not to be confused with Murdoc.