Hey, Tracker fans! It’s Akash Kumar Dubey from DramaWire.Studio, diving into the TV Shows category to break down the cast and guest stars of Tracker Season 2, Episode 18, titled “Collision.” As a small-town guy who’s hooked on Colter Shaw’s survivalist adventures, I’m thrilled to unpack this gripping episode that aired on April 27, 2025, on CBS. Using info from Collider, The Direct, and Showbiz Junkies, plus X buzz, I’ve got the full scoop on the main cast, guest stars, and their roles in this missing-person mystery set in Willow Creek, Michigan. Let’s track down the details!
Episode Overview: “Collision”
In Tracker Season 2, Episode 18, Colter Shaw (Justin Hartley) races to find Riley Adams (Annalisa Cochrane), a 26-year-old former pageant princess who vanished after a car wreck while driving home from work. Collider notes the small-town drama in Willow Creek complicates things, with local biases and secrets challenging Colter’s mission. The episode, directed by Joel Novoa and written by Dominique Holmes and Ryan O’Nan, blends high-stakes tracking with personal dynamics, earning praise for its return to Season 1’s case-focused format, per IMDb (7.8/10 rating). Now, let’s meet the players
Main Cast of Tracker Season 2, Episode 18
The core Tracker team is back, anchoring this tense episode:
- Justin Hartley as Colter Shaw: The lone-wolf survivalist and reward seeker who uses his tracking skills to find Riley. Hartley, known for This Is Us, shines as the resourceful hero, per The Direct.
- Fiona Rene as Reenie Greene: Colter’s lawyer friend, who makes a brief appearance to pull medical records for suspects, leveraging her endless connections, per ScreenRant. Rene’s credits include Fire Country.
- Abby McEnany as Velma Bruin: Colter’s assistant, who kicks off the case with a call about the $15,000 reward for Riley. Collider notes her usual quick scene, but fans want more of McEnany (Work in Progress).
- Eric Graise as Bobby Exley: The tech expert and hacker, back as Colter’s “guy in the chair.” Graise (Locke & Key) supports the investigation, per The Direct.
- Chris Lee as Randy: Bobby’s cousin and tech stand-in, now a permanent Team Tracker member. Lee (The Chi) adds chemistry with Colter, per ScreenRant.
“Colter and Team Tracker are firing on all cylinders in this one!” – Akash Kumar Dubey
Guest Stars in “Collision”
Episode 18 brings a fresh batch of guest stars to flesh out Willow Creek’s drama, per Collider and Showbiz Junkies:
- Annalisa Cochrane as Riley Adams: The missing 26-year-old, a former model and pageant queen who’s five months pregnant. Cochrane, known for Cobra Kai and One of Us Is Lying, delivers a pivotal role as the case’s heart.
- Mercedes De la Zerda as Sheriff Katy: The county sheriff who aids Colter, sharing a personal connection to Riley from school days. De la Zerda (Shadowhunters) brings warmth and local insight, bonding with Colter over fears (hers: water; his: chickens!).
- Summer Lynn Gillespie as Cheryl: Riley’s coworker and best friend since second grade, sporting a floral manicure. Gillespie’s brief but memorable role ends tragically, per Collider. Her credits include short films like The Weight of It.
- Jacob Machin as Vincent: Riley’s boyfriend and the baby’s father, initially a suspect. Machin’s performance, including a tense fight scene with Colter, adds depth, per Showbiz Junkies. He’s appeared in The Flash.
- Emily Swallow as Monica Harper: A key figure with a dark secret tied to Riley’s baby, posing as someone she’s not. Swallow (The Mandalorian) plays a daring villain, per Collider, with a past alias as “Lisa.”
- Jason Diaz as Tyler Harper: Monica’s husband, with a manslaughter record that complicates their motives. Diaz (The 100) adds menace to the couple’s desperate scheme.
- Vanessa Walsh as Susanna Adams: Riley’s worried mother, who hires Colter with the $15,000 reward. Walsh (Supernatural) grounds the episode with emotional stakes.
- Daniel Cudmore as Detective Douglas: A local cop assisting Colter in the chase for the Harpers. Cudmore (X-Men: Days of Future Past) brings grit to the action-packed climax.
Standout Moments and Fan Reactions
Collider praises the episode’s “well-developed dynamics” in Willow Creek, with Colter’s survivalist skills—like spotting a broken headlight and skid marks—stealing the show. The Harper couple’s chilling motive, tied to their failed attempts at parenthood, adds a bold twist for an apolitical show, per ScreenRant. X fans are buzzing:
@TrackerFan tweeted, “Annalisa Cochrane’s Riley had me stressed! Great guest star!” [], while
@TVJunkie22 said, “Mercedes De la Zerda’s sheriff vibe with Colter was ” []. Some, like
@ShowAddict, felt Cheryl’s death was overlooked, calling it a “bummer” [].
“The guest stars, especially Cochrane and Swallow, make this episode a rollercoaster!” – Akash Kumar Dubey
Why This Cast Shines?
The mix of Hartley’s grounded heroism, Cochrane’s emotional weight as Riley, and Swallow’s chilling turn as Monica elevates “Collision” to one of Season 2’s best, per Showbiz Junkies. Rotten Tomatoes notes fans enjoy the tighter focus on Colter’s case-of-the-week, with guest stars adding small-town flavor. De la Zerda’s Sheriff Katy and Machin’s Vincent bring personal stakes, while Diaz and Walsh deepen the mystery. It’s a stellar ensemble for a high-stakes rescue.
Final Thoughts
Tracker Season 2, Episode 18, “Collision,” delivers a gripping case with a stellar cast led by Justin Hartley, Annalisa Cochrane, Mercedes De la Zerda, and Emily Swallow. From Riley’s disappearance to the Harpers’ dark plot, these actors bring Willow Creek to life. Catch the episode on Paramount+ or CBS, and follow DramaWire.Studio on Instagram or YouTube for more TV scoops. Who was your favorite guest star? Drop it below!
