Copano and Harrington, our two wild-card DEA agents

Copano & Harrington in Season 2: Lawmen, Allies, or Something In Between?

Fans of “Common Side Effects,” brace yourselves. Copano and Harrington, our two wild-card DEA agents, took Season 1 and spun it on its axis by the finale. After the Hildy’s farm raid and that tense, adrenaline-soaked escape out in the sticks, everyone’s left asking: what next? Will this odd couple form an alliance with Marshall and Frances, or do they slip back into their classic DEA power suits and old habits? Grab a snack and let’s rip open this blue and white envelope marked S2 predictions — because things get twisty.

Copano & Harrington in Season 2 of CSE

The Fallout at Hildy’s Farm: Fuzzy Lines Everywhere

Let’s rewind. At Hildy’s, chaos reigned. Bullets flew. Secrets leaked faster than a tipped-over beaker in Frances’ lab. Copano — normally the DEA’s golden boy — caught a bullet. That by itself should have ended things one way: with a hospital gurney and a debrief. But no, Harrington didn’t just go by the book. She tossed that DEA manual straight out the window.

In a bold move, she helped Copano by using the Blue Angel mushroom, the very substance their squad was hell-bent on eradicating. This wasn’t some quick, spontaneous decision. Harrington witnessed the mushroom’s healing powers when Marshall and Frances saved Hildy’s life. She weighed the risks and went all in. Talk about a game-changer.

Copano survived, but life after almost dying on the job never leaves a person the same. So where does that leave these two?

Copano: A Man in the Middle of Awakening

Let’s be blunt — Copano gets a raw deal. Picture the steadfast agent, years in the field, always trusting the mission. But facing death and then being saved by “the enemy” mushroom? That shakes a guy. His faith in the DEA wavers.

Recently, fans have dissected every scene. Social media’s teeming with threads about his changing attitude — his sidelong glances at Harrington, the way he paused before cuffing Marshall. Something’s been brewing inside him for ages. And now, after the Blue Angel incident, the internet speculates Copano’s eyeing a different path.

Realistically, he’s not flipping his badge in episode one. But he might start questioning orders. Maybe he tips off Marshall and Frances instead of hunting them. According to ScreenRant and several cast interviews in late July 2025, this season sees Copano being pulled by guilt, curiosity, and a newfound desire for justice — the kind not written in the DEA’s rulebook. He’s become a wild card.

Copano in CSE. DEA agents’ trajectory

Harrington: From Company Woman to Unlikely Rebel

Now, Harrington — she’s always played it cool. The pragmatic thinker. Never emotional, always analytical. But at Hildy’s, her logic smashed into something new: empathy.

She knew the mushrooms’ healing ability. She also knew helping her partner with them would put both their jobs — and maybe lives — on the line. Yet, her loyalty to Copano overridden protocol. Fans on Reddit point out the subtle moments: when she covered for Frances during the raid, or how she argued with her superiors afterward. She isn’t just following orders anymore; she’s shaping her own.

This news makes for juicy anticipation. Sources close to the writers suggest Harrington will walk a razor line this season — sometimes helping Marshall and Frances, sometimes feeding the DEA just enough to stay undercover. It’s not so much betrayal as it is survival. And frankly, it makes her one of the most unpredictable cards in the deck.

Harrington — she's always played it cool.

There’s No Going Back: Old Agendas Just Don’t Fit

Sure, Copano and Harrington have their roots in law enforcement. But after Season 1’s cliffhanger, there’s no easy return to the old status quo.

Let’s dig in and spell out what makes their future so murky:

  • Shared Secret: They both know Blue Angel isn’t just a party drug. It’s a life-saver. That’s not knowledge you can just forget.
  • Shifting Loyalties: Copano feels a duty to Marshall and Frances after being saved. Harrington isn’t sure whether to protect her own career— or blow the whistle.
  • Pressure from Above: New DEA bosses enter in Season 2, according to leaked scripts discussed on several fan forums. They won’t tolerate loose ends.
  • Hunted and Haunted: With Frances and Marshall now fugitives, any move might put all four in DEA crosshairs. Trust is currency, but so is silence.

As you can see, any “return to business as usual” feels virtually impossible.

What Would Team-Up Even Look Like?

Let’s get speculative — though not wildly, since we’re sticking to verified facts and showrunner hints.

If they actually team up, expect a shaky, distrustful start. Spoiler-free interviews hint at uneasy meetings in dimly lit parking lots and cryptic text messages hiding under untraceable numbers. Collaboration grows from necessity, not friendship.

The benefits? Copano and Harrington know the DEA’s next move before the DEA does. Marshall and Frances need that edge. Conversely, the agents need scientists on their side, especially when things turn biohazard-level messy. Expect moments of bickering and clashing philosophies — Copano the heart, Harrington the head, Frances the wild card, and Marshall always one foot out the door.

Fan forums predict at least one breaking point — maybe a chase scene that ends with all four cornered. But working together has a unique appeal. They get closer to the truth about the pharmaceuticals, and, well, the internet loves nothing more than frenemies forced to play nice.

Copano & Harrington in Season 2: Lawmen, Allies, or Something In Between

But…Old Loyalties Die Hard

Tempting as a full-on buddy team-up is, don’t bet your lunch money on everyone being on the same page all season. Cast commentary in June 2025 suggested “old habits resurface.” Copano, no matter how radicalized he gets, still has decades in law enforcement. Harrington’s decision-making may waver — does she expose the corrupt system, or just carve out a safer future for herself?

Add to that:

  • The DEA ramps up surveillance hoping to catch the rogue agents.
  • Frances trusts no one — her paranoia only grows.
  • Marshall faces his own moral dilemmas, torn between helping and protecting his family.
  • Whispers of a new “super-cure” making its way to the black market force everyone’s hand.

Basically, every alliance remains only as strong as the last close call or fresh betrayal.

Fan Buzz and Theories: Social Media Goes Wild

Scroll through X (formerly Twitter) or Reddit and you’ll find epic threads. Theories flood the timeline. Some viewers want Copano to turn full-on whistleblower. Others want Harrington to become the DEA’s mole — and perhaps leak from inside.

Highlights from social chatter:

  • Multiple accounts flagged shots of Copano “fixing” evidence at the farmhouse.
  • Behind-the-scenes teases on TikTok hint at Copano and Marshall sharing a clandestine lunch in episode two.
  • Fans obsess over Harrington’s cryptic line in the trailer: “Some laws are meant to be broken.”
  • Debates rage about whether the DEA will make examples out of their own, or quietly pull agents off the case to avoid scandal.

Mostly, the buzz shows viewers can’t peg these characters down — and that’s exactly why their storyline lights up every weekly watch party.

Blue Angel’s Shadow: A New Element of Chaos

Of course, none of this plays out in a vacuum. The Blue Angel mushroom isn’t just some controversial plot device. It’s the ticking clock behind every choice. With the streets heating up and pressure coming down from higher-ups, Copano and Harrington’s fates rest on who cracks first.

Plus, rumors of a pharmaceutical cover-up put every player in the DEA under scrutiny. That’s more than “bad optics”—it’s career-ending stuff. For our two agents, every meeting, every phone call, burns with risk.

The Next Dose: Things We Want, Fear, and Hope

So what are we really hoping for as the season kicks off?

  • Copano to go rogue and embrace his new sense of purpose.
  • Harrington to play double agent, always three steps ahead.
  • Marshall and Frances to trust someone outside their scientist bubble — maybe even take the leap and share the research.
  • A showdown with the new DEA bosses, high stakes and higher risks.

And of course, those “odd couple” moments — unplanned, awkward, hilarious, and, at times, incredibly moving. The chemistry’s too thick to ignore.

So, draw your own lines in the sand, and prepare for the ride. Copano and Harrington might surprise us all, because in “Common Side Effects,” the next move is never quite what you expect — especially when allies look a lot like yesterday’s enemies. Let’s see what happens when nobody’s sticking to the usual prescription.

Lucy Miller
Lucy Miller

Lucy Miller is a seasoned TV show blogger and journalist known for her sharp insights and witty commentary on the ever-evolving world of entertainment. With a knack for spotting hidden gems and predicting the next big hits, Lucy's reviews have become a trusted source for TV enthusiasts seeking fresh perspectives. When she's not binge-watching the latest series, she's interviewing industry insiders and uncovering behind-the-scenes stories.

Articles: 24