Lee-Roy Johnkins is a pre-made Sim who lives in Barnacle Bay with his two roommates, Juan Jr Inkbeard and Ahmed Barbarossa. All three are sloppy party-animals. Lee-Roy is said to have a giant heart (even if he is a gold digger). The fact that he is a gold digger could also explain why he had a romantic interest in Ophelia Piece when she was alive.
Lee-Roy Johnkins is a reference to the well-known Leeroy Jenkins, a famous internet "meme" that originated from World Of Warcraft.