EXCLUSIVE: Warner Bros TV is making sure one of the studio’s most prolific writer-producers, Julie Plec, is staying in the fold with a rich new three-year overall deal. Plec serves as showrunner on two WBTV series, The Vampire Diaries and its spinoff The Originals, both of which already have been renewed for next season. She developed The Vampire Diaries, based on the Alloy books, with Kevin Williamson and created The Originals. Additionally, she executive produces the CW/WBTV freshman drama The Tomorrow People, giving her three drama series on the air this season, the most for a writing producer on broadcast TV. Under the new pact, Plec will continue as showrunner on The Vampire Diaries, the CW’s highest-rated series, as well as The Originals, the network’s top freshman series, and will develop new projects in addition to executive producing The Tomorrow People if it goes to a second season. After a stint as an executive at Williamson’s company, Plec segued to a writing career. She was a quick study — making her writing debut on ABC Family’s cult series Kyle XY before teaming with Williamson to develop The Vampire Diaries. Plec is with WME and attorney Eric Suddleson.