Trevor Walton is ankling his post today as senior VP of longform programming at Fox Broadcasting Co. to take a job as president of Citadel Entertainment.

Walton will oversee production and development at Citadel, a prolific producer of movies for cable and network TV. He’ll also help develop new businesses for the production company, which is owned partially by HBO. Walton reports to David Ginsburg, president and CEO of parent company Citadel Prods.

Citadel’s recent TV films include “Rasputin” at HBO, “Pandora’s Clock” at NBC, “Citizen X” at HBO, “Dying to Be Perfect” at ABC and “To Face Her Past” at CBS. The company also is expanding to spend more time on feature film projects and other areas.

At Fox, Walton developed projects such as “Doctor Who,” Hallmark Entertainment’s “In the Lake of the Woods,” Marvel Comics’ “Generation X,” “Saved By the Light,” “The Invaders” and “The Price of Love.” Fox is expected to name his replacement shortly.

Before Fox, Walton worked at CBS from 1990 to 1994, most recently as vice president of motion pictures for TV and miniseries at CBS Entertainment. There he helped with projects such as “Gypsy” and “Return to Lonesome Dove,” among others.

Walton began his career as a talent agent with Fraser & Dunlop in London and later with the Susan Smith Agency in Los Angeles. His first production post was with Witz End Prods. in London, where he was producer of the British series “Girls on Top,” starring Tracey Ullman and Jennifer Saunders. He also was the development chief at Morgan Hills Films before joining CBS.