Detective John Kelly, NYPD Blue
Most people forget that the long-running cop series featured David Caruso as the first partner for Dennis Franz’ Andy Sipowicz. But after a breakout first season, Caruso demanded a hefty raise, which fell on deaf ears. “He never said it to me directly, but the simple truth was, Caruso felt he was too good for television,” producer Steven Bochco wrote in his memoir. In the end, the volatile actor was written out of NYPD Blue four episodes into Season 2. When his movie career failed to take off, he went on to star on CSI: Miami.
Meanwhile, NYPD Blue lasted another 10 seasons.