Resurrection” as a guest star. Details about the “How I Met Your Mother” star’s role are unknown, other than his character’s name: Lowell. Production for Showtime’s "Dexter" sequel series began in January in New York.

Dexter: Resurrection has added yet another star to its huge cast with Gone Girl and How I Met Your Mother Actor Neil Patrick Harris.

Neil Patrick Harris has been cast in the Showtime original series 'Dexter: Resurrection' in the guest starring role of "Lowell."