Primetime role.

Updated March 11:

Sebastian Roche will begin his guest role as King Stefan on ABC’s “Once Upon a Time” on Sunday March 15. In the episode “Enter the Dragon,” Roche’s character is introduced through flashbacks when the evil Queen Regina (Lana Parrilla) befriends Maleficent (Kristin Bauer van Straten) and helps her to rekindle her lost spark. Check out one of the photos from the set that Roche shared on Whosay.