Marshals: Who is Riley Green Playing and When Will He Return Next?

Marshals has finally brought Riley Green’s Garrett onto the board, and he is clearly more than a one-scene detour from Kayce Dutton’s past. Marshals Season 1 Episode 8 introduces him not as a polished guest-star stunt, but as a bruised, uneasy reminder of the war years that still sit heavy on Kayce and Cal. That alone gives the arrival some real heft. 

Grimes’ series has already spent the first stretch of Season 1 building a new life around Kayce, Tate, Rainwater, Mo, and the Marshals team, but this week the past came knocking with a guitar case in hand and old hurt still smoldering under the hood. Green’s casting also feels shrewd because Garrett fits the show’s world without seeming parachuted in for novelty. He carries history, resentment, and just enough mystery to rattle the floorboards. And since Episode 8 ends with Andrea still in danger and Randall Clegg’s war only getting uglier, the question now is not whether Garrett matters. It is how much trouble he is about to stir up next. 

Who Is Garrett on Marshals? Meet Riley Green

Marshals | Credit: CBS

Garrett is a former Navy SEAL who shares serious history with both Kayce and Cal, and Marshals  Season 1 Episode 8 wastes no time making that history feel thorny rather than sentimental. CBS’ official synopsis for Blowback teases that 

and that is exactly the lane the episode drives down. Garrett does not arrive in Montana as some cheerful old buddy with a few war stories and a grin. He turns up as a man carrying trauma like a sack of wet sand, and both Kayce and Cal react to him in very different ways. Kayce greets him warmly. Cal, on the other hand, looks like he would rather chew glass than revisit whatever this man represents.

That split matters because Garrett seems tied directly to one of the season’s bigger buried nerves: Roner. Earlier this year, Marshall-Green hinted that the truth around Roner would eventually crack open old wounds, saying (via  DECIDER):

Given Episode 8, it is now plain as day that Garrett is the man he was talking about. He is not just another veteran passing through. He is one of the keys to a locked room that the show has been circling for weeks. As for Green himself, he is not simply dabbling for kicks. Garrett marks the country singer’s acting debut, and the fit is tidier than many of us expected. TV Insider notes that Green plays a former SEAL from Alabama, while Country Living reports that the character is also a country musician and someone dealing with PTSD, addiction, and a deeply unsteady life after service. 

That overlap with Green’s off-screen persona, right down to the guitar, makes the part feel tailored without feeling lazy. There is enough rough edge there to stop it from becoming cosplay. 

When Will Garrett Return on Marshals? Episode 9 Setup, and Why He Matters Next

Marshals | Credit: Fred Hayes/CBS

The good news for anyone who liked Garrett’s first appearance is that he is not done yet. TV Insider reported before Episode 8 aired that Green’s first episode would be “Blowback” and that he would return the following week in Marshals Season 1 Episode 9, In Low Places, airing on Sunday, April 26. 

And Episode 9 sounds like precisely the sort of hour where he could become crucial. The official logline for In Low Places says:

Given how Episode 8 ended, with Randall Clegg holding Andrea captive and the team staring down a gunfight against his militia, Garrett’s timing is awfully convenient. If ever there were a moment for an old SEAL brother to stop being a ghost from the past and become useful in the present, this is it. Garrett’s return also matters for emotional reasons, not just tactical ones. Episode 8 made it abundantly clear that Cal and Kayce are still carrying their wartime history differently, and Garrett walks right into that fault line.

He knows too much, he remembers too much, and he seems unstable enough to make everyone nervous while still sympathetic enough to keep viewers invested. That is a useful combination. A character like that can help a rescue mission while also shaking loose truths the series has been saving for later. If the show uses him well, Garrett could be the man who forces the military past and the present-day crisis to collide in one nasty heap. If it wastes him, then this whole setup becomes a missed chance. 

Is Garrett here to help steady Kayce and Cal, or is he about to tear open old wounds they can barely afford to revisit? Drop your thoughts below, and follow FandomWire for more Marshals updates, cast deep-dives, and weekly small-screen wrangling.

Marshals Season 1 is currently streaming on Paramount+.