In a show where both time travel and head-munching insects are regular occurrences, nothing is out of the question.

Stephen Root joins Resident Alien as Harry’s alien father, and it's everything fans could hope for. Root teases the hilarious, emotionally charged reunion — without spoiling a thing.

Stephen Root didn’t just appear on Resident Alien season 4; the actor detonated it with the emotional force of a father-shaped asteroid.

As per the ruling of the Galactic Housing Council, Harry's alien essence would be placed in the care of an executor who would decide when our protagonist was worthy of having it back. That executor turned out to be Papa Vanderspeigle, who is none too pleased that his own progeny failed to complete the task of wiping out humanity.

Stephen Root Makes Guest Appearance on the Next 'Resident Alien' first appeared on Parade on Jul 17, 2025 This story was originally reported by Parade on Jul 17, 2025, where it first appeared. The former "Late Show" host took on the network after it announced its plans to take his old program off the air.

Stephen Root's unforgettable guest turn on Resident Alien brings sharp comedy, deep cruelty, and a father-son showdown for the ages. He opens up about Ed’s twisted mindset and that hilariously long alien name.

'Resident Alien' Fans Get Devastating News originally appeared on Parade.

The out of this world talented Stephen Root is joining “Resident Alien” Season 4 in a guest star role, Variety has learned exclusively. Root will play the father of Harry (Alan Tudyk).

USA Network has swooped in to save Resident Alien from cancellation.The series, which aired its first three seasons on Syfy, will head to another NBCUniversal network, USA, for its fourth.

Stephen Root talks his surprise Resident Alien season 4 character, how it continued a fun career trend for the star and how his arc will impact Harry.