Up-and-comer Jack Mulhern, in his first casting following college, has been cast as co-lead Tyler Locke, the oldest son of Rendell and Nina and a protective older brother to his siblings, in Locke & Key, Hulu’s one-hour horror/fantasy drama adaptation of the IDW comic by Joe Hill and artist Gabriel Rodriguez. Additionally, Danny Glover (Lethal Weapon movies) will co-star in the pilot from Hill, Carlton Cuse and IDW Entertainment.

Written by Hill and directed by Muschietti, Locke & Key revolves around three siblings (Mulhern, Charpentier, Jackson Robert Scott) who, after the gruesome murder of their father, move to their ancestral home in Maine with their mother Nina (Frances O’Connor) only to find the house has magical keys that give them a vast array of powers and abilities. Little do they know, a devious demon also wants the keys, and will stop at nothing to attain them.

After his dad is murdered, Tyler (Mulhern) has to grow up quickly and wrestles with being a teenager and filling his father’s shoes as man of the house. Tyler’s life is even more complicated after discovering his ancestral family home has magical keys that give him a vast array of powers and abilities. In the 2011 Fox pilot, the role was played by Jesse McCartney.

Glover will play Joe Ridgeway, the eccentric English Teacher at Matheson Academy. After the gruesome murder of their father Rendell, the Locke family moves to Matheson. Joe becomes a mentor to the Locke children and a friend to Nina, but he also knows some of the tragic secrets Rendell kept from his family.

Mulhern is repped by The Burstein Company.

Locke & Key is Executive Produced by Cuse, who serves as showrunner, Hill, Lindsey Springer and Barbara Muschietti, as well as IDW Entertainment’s Ted Adams and David Ozer; and David Alpert and Rick Jacobs from Circle of Confusion.