Is Resident Alien Season 4 ending with an unforgettable twist? Here’s what to expect

After four seasons of heart, humor, and a surprising amount of homicides, Resident Alien Season 4 is gearing up to take its final bow.

While fans are still reeling from the news that the show won’t return for a fifth installment, Syfy’s beloved alien dramedy isn’t letting go without a final alien-sized curveball. The show, never one to shy away from high-concept hijinks, is leaning into what could be its most ambitious and terrifying twist yet.

In the most recent episode, titled “Mine Town,” the series pulled a move that redefined the meaning of “trust no one.” With the alien threat intensifying and the small town of Patience now fully aware of the intergalactic situation they’ve landed in, the stakes have never been higher. But as fans have learned, it’s not the battles that define Resident Alien, it’s the people. One of those people might not be who we think they are anymore.

So, what’s coming in the final two episodes of Resident Alien Season 4? A showdown, no doubt. But also a twist that could forever change how we look at the show’s most beloved characters.

The Mantid’s latest form could spell doom for Resident Alien Season 4

Let’s talk about the Mantid — a shape-shifting alien villain who doesn’t just hide in plain sight but thrives there. After previously impersonating Agent Gardner (Jewel Staite) and even Harry himself, the sinister insectoid has now taken on a face we never expected: Deputy Liv Baker. Played by Elizabeth Bowen, Liv has always been the show’s unshakable moral compass. So naturally, turning her into the villain’s new disguise feels like the ultimate betrayal.

This twist doesn't just raise the stakes — it sets the stage for full-blown paranoia. With a villain who can be anyone, nowhere is safe and no one can be trusted. It’s a deliciously cruel narrative turn, and one that aligns perfectly with the show’s offbeat, twisty tone. But it also begs the question: is the real Liv still alive? Or has she already become the Mantid’s latest victim?

Could Clancy Brown finally show up on Resident Alien Season 4?

Here’s where things get even more intriguing for Resident Alien Season 4. The Mantid first appeared back in Season 3’s finale, voiced by none other than Clancy Brown — the legendary actor behind some of pop culture’s most iconic villains. So far, Brown’s involvement has been strictly vocal, but fans are buzzing with hope that the final episodes might finally give him a physical presence.

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It wouldn’t take much: all the writers need to do is introduce a character (or victim) who looks suspiciously like Clancy Brown. The Mantid could slip into that skin, and boom — we get a full-bodied Brown villain in the flesh just in time for the finale. It would be a poetic final transformation for the series’ deadliest alien, and a perfect capstone for a show that has never stopped reinventing itself.

Whether or not we get a Clancy Brown cameo, one thing is clear: Resident Alien Season 4 is ending on a note that fans won’t soon forget. With only two episodes left, it’s time to brace for laughs, gasps, and possibly some tears as we say goodbye to one of sci-fi TV’s most endearing oddballs.

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