The Wirral-based rock band Half Man Half Biscuit included the line "Is this me, or is this Dead-Shot Keen?" - in reference to Billy's oft-voiced wondering about his ability - in the song "Our Tune" on their 1991 album MacIntyre, Treadmore and Davitt.
The 2000 film There's Only One Jimmy Grimble, starring Ray Winston, Robert Carlyle and Lewis Mckenzie as Jimmy Grimble, bears a resemblance to the strip.