AceShowbiz - Justin Hartley’s hit CBS series Tracker is undergoing a significant casting update as it heads into its fourth season. The survivalist procedural has become a mainstay in network television, maintaining its status as the most-watched show during the 2025-2026 TV season. Now, CBS has officially elevated Chris Lee, who plays Randy, to series regular status, marking a notable development in the show’s evolving ensemble.

Tracker debuted in early 2024, adapted from the book The Never Game, and marked a triumphant return for Justin Hartley to television after the conclusion of This Is Us. The show quickly dethroned NCIS as TV’s top-rated program in its first year, a testament to its compelling premise and strong fan base. Centered on Colter Shaw’s (Hartley) undercover missions to track missing persons, animals, or objects, the series blends suspense with emotional stakes, keeping viewers invested week after week.

Throughout its run, Tracker has seen frequent cast shifts, with only Hartley and Fiona Rene (who portrays Reenie) remaining from the original pilot. The show’s dynamic often revolves around Colter’s on-the-ground work supported by a remote team. Early departures included Abby McEnany and Bobby Graise, who played Velma and Bobby, respectively, both of whom exited ahead of season 3’s premiere in fall 2025. Additionally, Robin Weigert, who portrayed Teddi, left the series earlier, further reshaping the core group.

Introduced late in season 2 as Bobby’s cousin, Chris Lee’s character Randy was brought in to assist Colter with technological support, filling the void left by Bobby’s departure as he dealt with personal issues. Randy quickly became a key player in the team, even establishing a close working relationship with Reenie by sharing office space and collaborating directly on cases. Despite his prominent role in season 3, Randy was still classified as a recurring character—until now.

With CBS’s recent announcement, Lee’s promotion to a series regular solidifies his ongoing presence on Tracker. This move could hint at expanded storylines for Randy, potentially including more personal case arcs, as the show frequently explores the backgrounds and challenges of Colter’s allies. Fans can anticipate a deeper dive into Randy’s role and contributions as the series heads toward its next season.

It is noteworthy that if Chris Lee and Fiona Rene continue their roles into season 4, it would be the first time Tracker retains its entire main cast ensemble from one season to the next. This stability may signal a new phase for the procedural, allowing for richer character development and ongoing team dynamics without the disruptions of previous years.

Since its inception, Tracker has undergone multiple rebrands and cast changes, but its core narrative around Colter Shaw’s survivalist skills has remained intact. The show’s ability to maintain high ratings despite these shifts speaks to the strength of its storytelling and the appeal of Hartley’s lead performance. CBS’s confidence in the series is further underscored by its renewal for a fourth season, ensuring that fans will continue to tune in for more thrilling adventures.

For those following the series closely, subscribing to newsletters dedicated to Tracker casting and storyline updates can provide detailed insights and analysis. These resources help viewers stay informed about the latest developments, casting changes, and narrative directions, enriching the overall viewing experience.

As Tracker moves forward, the official promotion of Randy’s character promises a fresh energy to the team and new possibilities for character-driven plots. Viewers can look forward to watching how this adjustment impacts the show’s dynamic and the challenges Colter and his team will face in upcoming episodes.