Tracker is one of TV’s biggest shows. Justin Hartley anchors the CBS Original drama as Colter Shaw, a lone survivalist and skilled tracker with a knack for finding missing people.
As Tracker heads toward its Season 3 finale — and, don’t worry, it’s already been renewed for Season 4, and set for the CBS Fall 2026 schedule — interest in the show (and its cast) is only growing.
And while Colter’s a loner, Hartley belongs to an ensemble of actors whose characters support Colter, and challenge him. Here’s your guide to the cast of Tracker, plus info on the characters they play.
SPOILER ALERT: Key plot points from the first two seasons of Tracker will be discussed.
Who plays Colter Shaw in Tracker?
Justin Hartley plays Colter Shaw in Tracker. He pulls double duty on the show as an executive producer. Other top credits: This Is Us, Smallville, The Young and the Restless
About the character: Colter, who makes his living as a reward seeker, balances grit with vulnerability while navigating dangerous cases.
Who stars in Season 3?
Tracker Season 3 stars Justin Hartley as Colter Shaw. Additionally, Fiona Rene returns to the regular cast as Reenie Greene. Guest star Chris Lee reprises his role of Randy.
Jensen Ackles is back, too, as a special guest star in the role of Russell, Colter’s brother. Ackles appeared in the first two episodes of Season 3, “The Process” and “Leverage.” And while it’s been a stretch now since Ackles’ character was around, his Russell returns for “Chronos Stasis,” a new episode set to launch Sunday, May 17, 2026.
Recurring + guest stars
Colter’s mysterious family adds layers to his story, and intriguing characters from it appear throughout the series to complicate matters. These visitors keep his personal world as unpredictable as his cases.
Who plays Russell Shaw on Tracker?
Jensen Ackles plays Russell Shaw on Tracker. Look for him next in the Tracker Season 3 episode, “Chronos Stasis,” premiering Sunday, May 17, 2026. Other top credits: Supernatural, The Boys, My Bloody Valentine
About the character: Russell is Colter’s estranged older brother, a former soldier turned private security contractor. The siblings’ strained relationship is marked by unresolved family tensions, including the mysterious death of their father, Ashton Shaw (Lee Tergesen).
Who plays Pet Vahdat as Leonard Sharf?
Pet Vahdat plays the role of Leonard Sharf in Tracker. Other top credits: Poker Face, The Old Man
About the character: Leonard hires Reenie to gather leverage against a founding partner of his company; he insists on discretion and a lack of paper trail. Along the way, there are hints that Leonard may be hiding secrets that could connect to Colter’s family history.
Season 2 cast and characters
Tracker Season 2 follows Colter as he takes on new cases, all the while being pulled deeper into the mystery of his family’s past. His search for the missing leads him to uncover a trafficking ring, hidden corruption, and long-buried secrets about his father’s death. Here’s a rundown of the cast and characters who come into play in Tracker Season 2.
Who plays Velma Bruin?
Abby McEnany plays Velma Bruin on Tracker Season 2. Other top credits: Work in Progress, And Just Like That …
About the character: Velma steps up into a larger role after her wife Teddi (Robin Weigert) leaves town to care for her mother. Velma moves operations into Reenie’s law office, becoming Colter’s main handler.
Who plays Bobby Exley?
Eric Graise plays Bobby Exley on Tracker Season 2. Other top credits: The Tomorrow War, Teenage Bounty Hunters
About the character: In Season 2, Bobby is back to his hacking, surveillance, and digital investigations … until, that is, he takes a leave of absence in the episode “Nightingale.” (He returns later in the season.)
Who plays Randy on Tracker?
Chris Lee plays Randy on Tracker Season 2. Other top credits: The Chi, Legacies
About the character: When Bobby takes a leave of absence, his cousin Randy takes over his job. Randy proves more than capable of keeping Colter’s operations running.
Who plays Reenie Greene?
Fiona Rene plays Reenie Greene on Tracker Season 2. Other top credits: The Lincoln Lawyer, I Know What You Did Last Summer
About the character: Season 2 sees Reenie launching her own law firm. Her professional growth is paralleled by her personal journey, as she navigates her sometimes confusing feelings for Colter. She also takes on a very controversial client, Leo Sharf (Pet Vahdat), who constantly encourages her to undertake morally questionable tasks like digging up dirt on his business partner.
Season 1 cast and characters
In Tracker Season 1, Colter’s pursuits range from finding a kidnapped racehorse to uncovering the truth behind a missing MMA fighter. Even as he tracks down answers to these cases, Colter is haunted by his own family secrets. Read on for a look at the cast and characters of Tracker Season 1.
Who plays Teddi Bruin?
Robin Weigert plays Teddie Bruin on Tracker Season 1. Other top credits: Deadwood, Smile
About the character: Teddi manages the operations behind Colter’s cases. She sources assignments, handles logistics, and provides support from her home base in Northern Florida. Teddi’s expertise in organizing and coordinating plays a crucial role in ensuring the success of Shaw’s missions.
Who plays Velma Bruin?
Abby McEnany plays Velma Bruin on Tracker Season 1.
About the character: Velma works alongside her wife, Teddi, serving as one of Colter’s handlers. Her job is to make sure Colter has the necessary resources to undertake his missions.
Who plays Bobby Exley?
Eric Graise plays Bobby Exley on Tracker Season 1.
About the character: Bobby serves as Colter’s tech support, providing crucial intel and hacking assistance from his base in Chicago.
Who plays Reenie Greene?
Fiona Rene plays Reenie Greene on Tracker Season 1.
About the character: Reenie is the attorney on Colter’s team. She is pivotal in navigating the legal complexities that arise during Colter’s missions. A past romantic history between Reenie and Colter is hinted at.
What is Tracker about?
Tracker follows Colter Shaw (Justin Hartley), a rewardist who finds missing people (or resolves the mysteries of what happened to them). Each episode presents Colter with a new client, and a new mission. Along the way, Colter confronts his family’s dark history, including his father’s unsolved murder. Colter eventually learns the truth about this death – and his mother’s role in it – setting up Tracker to deliver even more drama.
When and where to watch
You can watch Tracker on CBS and Paramount+. See below for all the tune-in details you need to watch new episodes:
Tracker Season 3
- New episodes air: Sundays
- Time: 8-9 PM ET/PT
- Channel: CBS
- Streaming: Paramount+*
* New episodes of Tracker can be streamed live as they air on CBS on Paramount+ with a subscription to the Paramount+ Premium plan, and/or they can be watched on demand, starting the day after they air, with a subscription to any Paramount+ plan.
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