19. Kris Jenner
As seen on: Keeping Up with the Kardashians (2007-present); Kourtney and Khloé Take Miami (2009-present), Khloé & Lamar (2011-present), Kourtney and Kim Take New York (2011-2012)
Kim is the standout star of the Kardashian clan, but matriarch Kris Jenner has the honor of being named one of the worst reality show stars of all time. She’s a "momager" who chooses clear favorites amongst her children—cough, Kim, cough—and her scenes on Keeping Up With the Kardashians are so contrived, it’s painful to watch.
For instance, a plot last season featured “marital troubles” in Bruce and Kris’ relationship: Bruce began golfing with his old friend Angie Everhart; Kris and Kim plus the whole E! crew “discreetly” spied on him; then Kris decided she totally needed to meet up with an ex-boyfriend for “closure” even though it had been 20+ years since they’d been together. Eventually, she found out that the ex was a gigantic asshole, and decided she loved Bruce after all. Problem solved!
We had more faith in Kim’s 72-day marriage to Kris Humphries than this.