Justin Hartley is trending in the United States after new reports revealed a major change involving Colter Shaw in Tracker Season 4. Coverage from Comic Book Resources and Collider describes the CBS drama as replacing or changing up Hartley’s version of its central character, while Michael Malarkey is set to guest star in the next episode, “Original Parts.”
The reports have pushed Hartley’s name into the spotlight because Tracker has been built around his portrayal of Colter Shaw, a survivalist and reward seeker who takes on difficult cases. Any change to that role represents a significant shift for the series, especially because Collider describes it as the first time the show has changed up Colter since Season 2.
Why is Justin Hartley trending right now?
Justin Hartley is trending because reports say Tracker is making a major change to its lead character during Season 4. Comic Book Resources reported that CBS has confirmed Hartley’s replacement in the role connected to Colter Shaw. Collider likewise described the series as officially changing up the character.
The headlines have prompted immediate interest from viewers who want to know whether the change affects Hartley’s ongoing place in the CBS drama, how the series will handle Colter Shaw, and whether the adjustment is part of a larger storyline. The reports do not provide a detailed explanation of the behind-the-scenes reason for the change.
What is clear is that the news concerns the show’s central character rather than a minor supporting role. Hartley has been the recognizable face of Tracker, so a casting or character transition naturally carries more weight than a typical guest-star announcement.
Is Justin Hartley being replaced on Tracker?
Reports from Comic Book Resources say CBS has confirmed a replacement connected to Hartley’s role as Colter Shaw in Season 4. Collider separately reported that Tracker is changing up Colter for the first time since Season 2.
The available headlines do not identify the replacement in detail or explain exactly how the change will appear onscreen. They also do not establish whether the development is a permanent recasting, a storyline-driven change, or another format used by the series. For now, the confirmed point is that Season 4 is altering the way Colter Shaw is presented.
That distinction matters because the news is being discussed as both a casting development and a creative change. Viewers may be looking for a new performer, a different version of the character, or an explanation within the episode itself, but the reports stop short of laying out those details.
What is Tracker Season 4, Episode 3 about?
The third episode of Tracker Season 4 is titled “Original Parts,” according to IMDb’s episode listing. The installment airs tonight on CBS and features Michael Malarkey as a guest star.
Malarkey’s appearance adds another notable casting detail to an episode already attracting attention because of the Colter Shaw news. IMDb’s report identifies him as a guest star but does not provide enough information to establish his character’s role in the episode or connect him directly to the reported change involving Hartley.
The timing has made “Original Parts” a natural focus for fans following the story. Viewers will be watching to see whether the episode addresses the reported transition, introduces information about Colter Shaw, or simply presents a standalone case. The available reports do not confirm how the episode handles the change.
Who is Michael Malarkey playing in Tracker?
Michael Malarkey is guest starring in Tracker Season 4, Episode 3, “Original Parts,” which airs on CBS tonight. IMDb’s episode report confirms his appearance but does not identify his character or describe his role in the story.
That makes Malarkey one of the episode’s main points of interest alongside the reported change involving Colter Shaw. His casting may be part of the episode’s individual plot, but no direct connection between his character and Hartley’s status has been confirmed in the cited reports.
For viewers searching for answers about Justin Hartley, the key update is that Tracker Season 4 is changing its treatment of Colter Shaw. CBS has confirmed the replacement or transition reported by entertainment outlets, while the exact onscreen explanation remains to be revealed.