Resident Alien was more than just a sci-fi comedy. It was a warm, funny, and surprisingly emotional journey. From that first moment when an alien crash-lands in a small town in Colorado and assumes the identity of a local doctor, the audience is absolutely hooked. The show came with bizarre humor, strong bonds of friendship, intrigue, and some tearful moments.
What was supposed to be a story of an alien intent on destroying humanity soon became one of connection, growth, and what we consider to be truly human. With every passing season, the quality of the series got better and better, with new characters, alien threats, and emotional twists.
From Harry’s strangeness to Max’s wit to Asta’s steadfastness, there are just so many things to cherish and remember. These 10 unforgettable moments will remind you why Resident Alien ought to be missed.
10 Best moments from Resident Alien that will make you miss the show
1. Harry’s first steps as a human

One of the most hilarious early moments of Resident Alien is when Harry tries acting human. He copies others’ facial expressions, speech, and eating processes. That is apparently how this alien thinks humans do it; the scenes quickly get uncomfortable and very funny.
In Season 4, upon losing his extra powers, Harry completely turns into a human, making that first awkward attempt even more meaningful in retrospect. It shows how he went from pretending to be human to developing genuine feelings of guilt, kindness, and love.
2. Max learns Harry’s secret

Once Max sees Harry’s alien form in reality, a unique and comical rivalry between Max and Harry is sparked. Max will do almost anything to expose the secret, and all Harry is trying to do is get the kid off his back. But over time, something strange happens—they start to gently forge an actual bond.
In Season 4, Max’s presence is greatly increased. He helps Harry with alien threats, time travel, and saving lives. That discovery moment builds into a whole friendship filled with funny fights, trust, and real care. It is a story that develops both of them.
3. Harry’s cow “autopsy”

One of the unthinkable early moments has Harry once again sterilely laying a cow to rest in an autopsy room. He treats it as a dramatization he does not fully comprehend with respect to Earth biology. Strange and funny, yes, but it is important. It points to Harry’s alien nature and his ignorance regarding earthly life.
What was initially dark comedic fare then begins to feel like the inception of his evolution. It serves as a reminder that he has traveled a long way toward valuing life.
4. Asta finds out the truth

Asta learning that Harry is an alien is one of the series’ strongest moments. Initially, she’s horrified and terrified. But rather than reporting him, she becomes his keeper and decides to stay by his side. That single choice defines all of their tale. Asta then serves as Harry’s instructor on how to be more human.
Their relationship becomes even deeper in Season 4, where Asta stands by him through alien trials, significant emotional decisions, and even time travel.
She makes him experience emotions such as regret and love. Her devotion transforms an odd friendship into something lovely, and the reveal is one of the show’s pivotal plot turns.
5. Harry saves Max despite their feud

Although Harry and Max begin as adversaries, their lives are changed forever when Harry saves Max’s life. In the middle of a harrowing experience, Harry acts without hesitation to save him. We’ve not seen Harry be so concerned for anyone else before he came to Earth. It illustrates how much he has transformed since arriving on Earth.
One act of derring-do in saving Max is enough to create actual trust between them. It shows Harry is not just an alien anymore—he is a person who can love, be loyal, and sacrifice.
6. The bar fight with D’Arcy

D’Arcy is fearless, crazy, and does not back down. One of her best scenes is when she has a big and rowdy bar fight. It’s hilarious, surprising, and completely typical of her fearless attitude. But this scene also illustrates how much she will protect the people she loves.
Later in the series, D’Arcy becomes more vital. She assists Harry in Season 4 with alien threats and provides a shoulder for Asta when she needs it. That crazy bar scene proves to be more than a good time—it displays D’Arcy’s heart, loyalty, and strength hidden beneath the action and humor.
7. Harry’s visit to the Alien Convention

Harry attending a UFO convention is perhaps the most ingenious and laughable moment of the show. Dressed as aliens, the people around him do not even notice that Harry is there—no disguise required. As he chuckles at the humans and their fascination with aliens, something within him shifts.
In Season 4, this experience becomes tied to larger themes when Harry encounters actual alien courts and galaxy-wide judgments. What had started as a humorous excursion becomes an important turning point in how Harry understands himself and his position among humans.
8. Harry’s escape from the Government Lab

One of the most dramatic scenes in Resident Alien is when Harry is captured and brought to a classified government facility. The quiet, enjoyable life in Patience is suddenly turned serious as Harry becomes genuinely in harm’s way. But rather than getting defeated, he employs his wit and cleverness to escape.
It also adds more tension to the show, with the government now knowing about alien life. In Season 4, this getaway paves the way for greater threats and stronger enemies. It’s a turning point that increases the stakes for everyone.
9. The season 2 finale cliffhanger

At the conclusion of Season 2, Harry makes a surprising decision—he takes off in his spaceship with an alien baby rather than fulfilling his mission. This plot twist turns the entire show around. Rather than a destroyer, Harry is now a protector. In Season 4, we find him taking great care of the alien child, attempting to raise it as he learns more about fatherhood and responsibility.
This scene marks a significant change in the character of Harry. The formerly aloof and narcissistic alien now chooses love and bonding. It’s one of the most memorable moments that continue to spark fan discussion.
10. Harry and Asta’s goodbye at the cabin

Harry and Asta’s farewell at the cabin is one of the saddest moments in the series. Harry deletes Asta’s memory in order to spare her from suffering, though it costs him greatly. This scene reveals just how much Harry has matured—he prioritizes someone else’s emotions over his own.
During Season 4, Asta gradually gets back her memories, and their bond becomes stronger than ever before. This farewell isn’t sad—it’s strong. It demonstrates that genuine friendship persists even through lost moments, secrets, and extraterrestrial truths. It’s one of the most unforgettable Resident Alien scenes.
From the very beginning, Resident Alien was one of the most unique and endearing shows. What started as an alien-in-a-small-town sci-fi comedy turned into an emotionally moving tale about friendship, identity, and what really defines a human being. The series had it all—humor, heart, and suspense—from Harry’s awkward human behavior to Asta’s emotional strength and Max’s ingenious discoveries.
Season 4 is set to be the last, and fans are already longing for the show with all its quirky charm and great performances. These ten best moments keep reminding us why Resident Alien was so much fun—and why it hurts to see it go.