Alan Rosenberg is an American actor. His acting profession started in the late 1970s. During his initial years in the ’80s, he had roles in the films The Wanderers, The Empire Strikes Back, Stewardess School, and Not for Publication. In the ’90s, he guest-starred on the medical drama ER, which earned him a Primetime Emmy nomination. He later starred on the miniseries Temptations. After this, he had a recurring character as Stuart Brickman on Chicago Hope. During this decade, he also became widely known for playing Ira Woodbine on the sitcom Cybill. In the 2000s, he played Alvin Masterson on The Guardian. More recently, he played recurring role Professor Youens on Shameless.