Karen MacKenzie (maiden name Cooper; formerly Fairgate) is a long-running fictional character in the CBS primetime soap opera Knots Landing. Karen is portrayed by actress Michele Lee, and has appeared on the show since its pilot episode, first broadcast on December 27, 1979. Knots Landing follows the trials of four middle-class families living on a suburban cul-de-sac known as Seaview Circle in California. Lee portrayed Karen for the entire run of Knots Landing, being the sole cast member to appear in every episode of its fourteen seasons. At the time, her appearances in all 344 episodes set a record for an actress on American primetime television. Karen's storylines focus on family troubles, business dealings, addiction and kidnapping. Series creator David Jacobs said "Karen is the tent pole. She says the things I want to say. She's the voice of the viewer." Entertainment Weekly also described Karen as being "efficient, kind, and understanding". During the course of her existence on the program, she was married to both Sid Fairgate (Don Murray) and second husband Mack MacKenzie (Kevin Dobson). Many other characters would try to undermine her relationship with Mack, such as his daughter Paige Matheson (Nicollette Sheridan), and former love interest Anne Matheson (Michelle Phillips), though Karen came to accept Paige as his daughter later on. Due to her long-running tenure, television personality Joan Rivers commented that Lee was, in theory, the "First Lady of Knots Landing" during her guest appearance on The Late Show, which Rivers hosted at the time. The characters of the series often represented what was happening in society at the time, which Lee acknowledged by saying: "Karen wanted to be a Pollyanna and wasn't ashamed of that. Remember in our society, maybe people don't remember, but remember when we could go over to other people's houses and come in through an open back door? I remember when I was a little girl and my mother and father would have people over and they'd walk into an unlocked door in our house."