Rent The 4400 (2004 - 2007)

With a large central cast the 4400 is an American science fiction series detailing the return of 4400 people who have inexplicably disappeared between 1946 and the present day, only to be deposited on Earth by a comet as if no time has passed at all. Without showing any sign of aging the returned characters have no memory of their time away and some begin to present paranormal powers. The series was cancelled before a narrative conclusion could be reached.