Don Stark is an American actor. His acting career spans decades starting in the 1970s. During this period, he appeared in the films Switchblade Sisters and Tilt. The following decade, he had roles in the movies Evilspeak, Peggy Sue Got Married, The Couch Trip, and Arthur 2: On the Rocks. He later had performances in the films Liquid Dreams, Freaked, Revenge of the Red Baron, and Star Trek: First Contact during the 1990s. From the late 1990s to mid-2000s, he became widely known for his role as Bob Pinciotti on the sitcom That ’70s Show. He starred on the show for all its eight seasons.