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.

The 'Jessica Jones' and 'Uncoupled' stars, respectively, add to the already announced cast of Uma Thurman, Peter Dinklage and several returning stars led by Michael C. Hall.

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 joins Dexter Morgan, redefining the link between How I Met Your Mother’s Barney and Trinity Killer.

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

March 4 (UPI) -- Showtime announced Tuesday that Neil Patrick Harris will guest star in Dexter: Resurrection. The show is expected to air this summer on Paramount+ with Showtime.

Neil Patrick Harris was spotted on Tuesday, March 4 on the streets of New York City shooting his guest role on Dexter: Resurrection with a nearly unrecognizable new look. Thanks to either a brown wig or dyed,

Though details about his new character have been kept tightly under wraps, Harris will take on the role of Lowell

Wait for it… Neil Patrick Harris looked legen-dary in recent photos from the set of the “Dexter” revival. Harris, 51, was spotted filming “Dexter: Resurrection” with Michael C. Hall, 54, in New York City on Wednesday.