‘Bosch’ Is Officially Saying Goodbye to Titus Welliver

Published Jun 23, 2026, 7:29 PM EDT

Amanda M. Castro is a Network TV writer at Collider and a New York–based journalist whose work has appeared in Newsweek, where she contributes as a Live Blog Editor, and The U.S. Sun, where she previously served as a Senior Consumer Reporter.

She specializes in network television coverage, delivering sharp, thoughtful analysis of long-running procedural hits and ambitious new dramas across broadcast TV. At Collider, Amanda explores character arcs, storytelling trends, and the cultural impact of network series that keep audiences tuning in week after week.

Born and raised in Puerto Rico, Amanda is bilingual and holds a degree in Communication, Film, and Media Studies from the University of New Haven.

This change to the character makes Bosch: Start of Watch the biggest test of whether the franchise can survive without Welliver's presence. For years, any new series added to the universe featured Welliver to comfort existing fans. Amazon and MGM+ are now asking audiences to embrace Bosch's character without the actor who has brought him to life for years. If the prequel does well, it will prove that Monaghan can make the character work and that the franchise can survive beyond the original actor.

Titus Welliver Has Been the Anchor of the ‘Bosch’ Franchise Since the Beginning

From the moment Bosch debuted in 2015, the series revolved around Welliver’s performance. Connelly’s novels provided the foundation, but Welliver’s quiet intensity and world-weary presence turned Harry Bosch into one of television’s most dependable detectives. Even as streaming trends changed and crime dramas came and went, Bosch built a loyal audience around its leading man.

That reliance didn’t disappear when the original series ended; Bosch: Legacy essentially continued the story, with Welliver still at its center, allowing the franchise to evolve without losing its identity. When Prime Video introduced Ballard, it expanded the universe again, but Harry Bosch himself remained part of the equation. His appearances helped establish continuity and reminded viewers that they were still watching the same world they had spent years investing in.

What makes Start of Watch different is that, for the first time, the franchise won’t have Welliver as a bridge between old and new. Fans won’t have the comfort of a cameo, narration, or even a supporting appearance. Instead, they’ll have to accept a completely new interpretation of a character who has belonged to one actor for more than a decade.

‘Ballard’ Expanded the Universe Without Letting Go of Harry Bosch

Ballard represented a natural next step for the franchise. Maggie Q’s detective brought a fresh perspective, but the series still maintained ties to its predecessor. Welliver’s appearances made the transition easier and reinforced the feeling that Ballard existed alongside the events of Bosch and Bosch: Legacy rather than replacing them. This approach is common among successful franchises, but walking away from the actor audiences most associate with them is something else entirely.

Procedural franchises like Law & Order and CSI have thrived for decades because they were built around institutions rather than individuals. Bosch has always been different because, despite its supporting cast and sprawling cases, the series was fundamentally a character study. Harry Bosch was the franchise, not just the lead, and this puts Start of Watch in a much riskier proposition than Ballard ever was.

‘Bosch: Start of Watch’ Is Turning Harry Bosch Into a Franchise Character

By casting Monaghan as a 26-year-old Bosch in 1990s Los Angeles, Amazon and MGM+ are making a bold bet, putting their money on viewers' love for Harry Bosch himself, not just Welliver’s version of him.The prequel makes that gamble even more interesting because it isn’t adapting a specific novel. While Connelly’s books contain glimpses of Bosch’s past, Start of Watch ventures into largely unexplored territory, giving the writers freedom but also removing the safety net that comes with adapting beloved source material.

Fortunately, the series still has several advantages working in its favor. Connelly remains involved behind the scenes, longtime franchise producers are returning, and early comments from the author have been enthusiastic. Welliver himself has voiced support for Monaghan’s casting, and Connelly has praised the actor’s performance. Still, none of that guarantees success. Fans have spent 10 seasons watching Welliver embody Bosch’s uncompromising moral code and relentless pursuit of justice. Replacing that familiarity won’t be easy.

Success Would Make ‘Bosch’ One of TV’s Rarest Franchises

Television history is full of spin-offs. Very few character-driven franchises survive the departure of the actor who made them popular in the first place, which is what makes Bosch: Start of Watch so fascinating. The series isn’t merely telling another story in this universe, but is attempting to answer a much bigger question: Is Harry Bosch larger than Titus Welliver?

Amazon clearly believes the answer is yes. After seven seasons of Bosch, three seasons of Bosch: Legacy, and a growing universe that now includes Ballard, the franchise is evolving beyond the man who started it all. Whether audiences are ready to do the same remains to be seen. One thing is clear, however: Bosch is officially saying goodbye to Welliver’s detective for now, and Start of Watch will determine what comes next.