Titus Welliver has revealed his role in the fourth and final season of Netflix’s The Night Agent, where he will play Martin Duval, a Department of Justice special prosecutor. According to Welliver, Duval is driven by a determined effort to secure justice after a deeply corrupt previous administration, but is written as a more subtle and intellectually formidable figure than a typical hard-charging prosecutor. The casting matters because Welliver is closely associated with crime thrillers through Bosch, and this role signals another major television project as that franchise winds down.

The article places the news in the context of Welliver’s recent career, noting that Bosch and Bosch: Legacy have both been cancelled, although he is still involved in the spin-off Ballard, which is due back this summer for a second series. It also says he currently appears alongside J.K. Simmons in MGM+ crime drama The Westies, while The Night Agent Season 4 is already in production and is expected to arrive before the end of 2026. Collider adds that Netflix renewed the show earlier this year despite falling viewership, and that Welliver was among the first new cast members confirmed for the final season.