Louise Cassidy-Williams is the sister of Phil Cassidy and the wife of Marty Jay Williams, the Trailer Park Mafia's leader (as mentioned by Phil Cassidy, by way of Vic's pager). Louise acts as a love interest to Vic during the game, although their relationship is very rocky later on. She is kidnapped by Martinez and his men takes her to a lobby where Victor finds her savagely beaten. Louise is killed by Armando after Armando's men kidnap her and took her to the Mendez brothers' mansion. She is shot several times by Armando and before she died, she tells Vic that she wished she and Vic had a relationship, to which Vic replied they did have something, and also told Vic that she wanted Mary-Jo to take care of her baby daughter. It is unknown what happens to her baby daughter, but she was most likely sent to Louise's sister, Mary-Jo.