Brad Kern

Brad Kern is a television producer and writer. He served as head writer and executive producer on the hit supernatural drama Charmed, on which he was showrunner for all eight seasons. Before that, he was showrunner and executive producer of the award-winning Fox series New York Undercover. Other previous credits include Lois and Clark: The New Adventures of Superman, The Adventures of Brisco County, Jr., and Hill Street Blues. He began in television as a staff writer on Remington Steele in 1985. He was one of the executive producers of the Fox action adventure drama Human Target. He worked as an executive producer on the second season of Beauty & the Beast.

Kern was hired as the showrunner when the presentation pilot became a series and shared the job of executive producer of Charmed with the show's creator Constance M. Burge for the first two seasons, when Burge departed due to disagreements.

At the end of the series, he and Holly Marie Combs took ownership of the "Hero" version of the Book of Shadows; the prop versions were sold at auctions. The "Hero" version was the main and most complete one; it was pivotal to shooting the series and was usually kept under lock and key. Kern and Holly Marie Combs currently share custody of the book, and agreed to alternate possession between the two of them, each getting the book for an entire year at a time. Despite this agreement, Kern has maintained possession since the ending of the show in 2006.

In The Behind The Scenes Featurette "The Power Of Three" on the Charmed bonus disc confirmed that he and Shannen Doherty had disagreements during the end of seasons three and four",so he decided to kill her character Prue Halliwell off and replaced her with long-lost half-sister Paige Matthews played by Rose McGowan. He confirmed that he had several confrontations with (Doherty) and thought the best way to move the show forward was to kill her off.

...
Wikipedia