“LOST” alumna Maggie Grace returns to the small screen with a recurring role on the still untitled serial killer pilot set up at Fox by writer/producer Kevin Williamson (“Vampire Diaries”) and Warner Bros. TV.

If picked up, the series will follow retired FBI agent Ryan Hardy (Kevin Bacon) as he returns to the bureau to help track down Joe Carroll (James Purefoy), a serial killing cult leader utilizing the internet to recruit accomplices. Grace will play a doctor who is the killer’s only surviving victim.

Grace, best known for her portrayal of spoiled rich girl Shannon Rutherford on ABC’s Emmy-winning drama “LOST,” made her major horror film debut in the 2005 remake of John Carpenter’s The Fog.

Additional genre creds include Malice in Wonderland, a clever retelling of the “Alice in Wonderland” fable, and parts one and two of The Twilight Saga: Breaking Dawn. The 28-year-old stunner will next be seen in producer Luc Besson’s Lockout.