Answer: Pierce Brosnan
Brosnan, a native of Meath, Ireland, landed the role of Stuart "Stu" Dunmeyer for this film. In the middle of the movie, Miranda introduced Mrs. Doubtfire to Stuart and Mrs. Doubtfire asked why his name was "Stu" since that reminded her of a food. Miranda told Mrs. Doubtfire that "Stu" was short for his real name of Stuart. In the middle of the film, Stuart took Miranda and the kids and Mrs. Doubtfire to a public pool to swim. After Stuart got out to have a drink, he spoke to someone about how he wanted to marry Miranda and he said that Daniel was a loser. When Mrs. Doubtfire heard this, she launched a fruit in Stuart's direction and hit him in the back of the head. At the end of the movie, Mrs. Doubtfire saved Stuart from choking but it was also revealed that Daniel was Mrs. Doubtfire. Brosnan had parts in the films "Dante's Peak", "The Tailor of Panama" and "Goldeneye".