Max’s ability flips the classic sci-fi trope on its head: the children aren’t just the first to believe—they are the only ones who know . Max’s determination to expose Harry, and Harry’s begrudging respect for a child who refuses to be gaslit, forms the emotional core of the series. Over time, the alien who came to destroy humanity finds himself protecting this annoying, brave little boy. The central arc of Resident Alien is Harry’s slow, reluctant conversion. He arrives hating humanity for its violence, pollution, and illogical emotions. Through his forced proximity to the townspeople—including the kind-hearted mayor’s assistant, Astah Twelvetrees (Sara Tomko), a woman grieving her own lost father—Harry begins to experience human sensations: loneliness, friendship, and eventually, love.
Where Tudyk shines is physicality. Harry is constantly forgetting how human bodies work—walking like a marionette, smiling by pulling his lips back to expose all his teeth, or learning to cry by manually squeezing his tear ducts. It is a slapstick, alien reinterpretation of human life that rivals Jim Carrey at his peak. The show’s secret weapon is Sahil “Max” Hawthorne (Judah Prehn), the young son of the town’s mayor. For reasons unknown, Max is the only person on Earth who can see Harry’s true reptilian form. While adults see a grumpy doctor, Max sees a green, lizard-like monster in a trench coat. Resident Alien
When Resident Alien first premiered on Syfy in 2021, it seemed like a simple pitch: what if an extraterrestrial crashed on Earth, assumed a human identity, and got stuck solving a murder while waiting for his ride home? What audiences discovered, however, was a surprisingly tender, hilarious, and often profound meditation on grief, belonging, and what it truly means to be human. Max’s ability flips the classic sci-fi trope on