Dennis Dugan is an American actor, director, and screenwriter, best known for his work in comedy films. He was born on September 1, 1946, in Wheaton, Illinois. Dugan gained recognition for directing popular movies such as Happy Gilmore and Big Daddy, both starring Adam Sandler. In addition to his directing career, Dugan has appeared in various television shows and films. He started his career in the 1970s, acting in series like The Rookies and The Love Boat. Over the years, he has become a prominent figure in the comedy genre, contributing to numerous successful projects.