Dermot Mulroney is an American actor. His Hollywood career started in the 1980s. His first notable work on the big screen was in the movie Young Guns. In the ’90s, he gained mainstream recognition for his starring performances in the films Samantha, Where the Day Takes You, How to Make an American Quilt, and My Best Friend’s Wedding. In the 2000s, his most prominent roles were in the films The Safety of Objects, About Schmidt, and Zodiac. His latest movies are Insidious: Chapter 3, Dirty Grandpa, and The Mountain Between Us. On the small screen, he has notable roles on Crisis and Shameless.