"Reign" alum Alan Van Sprang will play the villainous Valentine on "Shadowhunters," the ABC Family adaptation of Cassandra Clare’s bestselling “Mortal Instruments” novels.

The series follows 18-year-old Clary Fray, whose life is derailed when her mother is kidnapped and she discovers she descends from a long line of Shadowhunters, human-angel hybrids who hunts demons. Clary is thrown into a hidden shadow world filled with faeries, warlocks, vampires and werewolves, where she pursues demons with the mysterious Shadowhunter Jace and her best friend Simon.

Valentine is a cunning and powerful Shadowhunter with the confidence to seek out what he wants, and the willingness to execute anyone who stands in his way.

Van Sprang joins a cast that includes Katharine McNamara as Clary Fray, Dominic Sherwood as Jace, Alberto Rosende as Simon Lewis, Emeraude Toubia as Isabelle Lightwood, Isaiah Mustafa as Mustafa will play Luke Garroway, and Matthew Daddario as Alec.

Produced by Constantin Film, “Shadowhunters” begins production this month in Toronto.

(via TheWrap)