 Perhaps the most high-profile of those behind the movement to return "Doctor Who" to the screens is writer Russell T Davies, who initially worked in the BBC children's department earlier in his career, and contributed to British TV science fiction there.Davies' first sci-fi serial was the six-part "Dark Season" (1991), which co-starred a young Kate Winslet as well as former "Blake's 7" star Jacqueline Pearce.Two years later Davies wrote a second, much more complex serial called "Century Falls" (1993).