Marguerite Moreau: Marguerite Moreau. Actress: The Mighty Ducks. Marguerite C. Moreau born April 25, 1977 is an American actress. She is best known for her role as Katie in the comedy cult film Wet Hot American Summer, and her role in The Mighty Ducks series of films. She has also made appearances on the popular television series Smallville, Lost, Cupid and The O.C.