Lucas Douglas was a recurring character on House during the fifth and sixth season. He was a private investigator hired by House in Season Five to keep track of Wilson. In Season Six, he became Lisa Cuddy's boyfriend. He briefly became her fiancé until she ended the relationship and she went to be with House at the end of the season. As the series progresses from Season 5 to Season 6, Lucas's investigative skills become even more impressive. He soon woos Cuddy and there is talk of marriage as he bonds to Rachel Cuddy as well. He was portrayed by actor Michael Weston.