“Law & Order Toronto: Criminal Intent” is updating its cast for Season 4, with Luke Kirby joining the Citytv series while long-running star Aden Young exits. Variety and The Hollywood Reporter report that Young is not returning as Det. Sgt. Henry Graff after three seasons. Both outlets describe the departure as part of a broader shakeup in the series’ squad room.
The reports also agree that Luke Kirby is set to join the show for Season 4, marking a new addition to the principal cast. While the sources confirm the casting change and Young’s exit, they provide limited detail in the available excerpts about Kirby’s specific character or how the squad-room changes will be integrated into the storyline.
Overall, both outlets characterize the Season 4 transition as a personnel shift affecting the show’s core team dynamic, with Kirby stepping in as Young leaves the role of Det. Sgt. Henry Graff.
