Mickey “Mulligan” Callahan has been running the caddie operation at Willow Dunes Country Club for longer than anyone can remember—including Mickey himself. With a perpetually unshaven face, a well-worn cap, and a cigarette dangling from the corner of his mouth at all times (sometimes even while talking), he is the grizzled heart and soul of the caddie shack. His official responsibilities include “maintaining order”, though his actual duties seem to involve yelling at late caddies, fixing broken pushcarts with duct tape, and chain-smoking between giving questionable life advice.