Duff Killigan is a villain from Kim Possible. The self-proclaimed "World's Deadliest Golfer", he was banned from every golf course in the world, even miniature golf for excessive displays of temper. His weapons are his golf clubs and exploding golf balls. He speaks with a Scottish accent. Although he debuted as an independent villain, subsequent appearances have shown him as more of a 'mercenary'-style individual, committing robberies to sell the stolen objects to others without any real plan for them himself.