David Rysdahl, who plays Arthur Sylvia on FX’s Alien: Earth, described what it was like to have a Facehugger attached to his face and recalled filming the episode in which his character is chest-bursted.
Spoilers for Episode 7, “Emergence,” now streaming on Hulu: about halfway through the episode, Arthur — who was attacked by a Facehugger in the previous installment — experiences a tender moment with two hybrids before a baby Xenomorph bursts from his chest, killing him.
Rysdahl spoke to Decider by Zoom and described a mix of practical effects, prosthetics and dummies used to stage the scenes. He said close-up work where he was on the ground involved him wearing the prosthetic face device, while shots in which the hybrids carry him used a body-double dummy created by Weta and the practical effects team. The dummy allowed the production to avoid making the hybrids look like they were struggling to lift him and preserved the actors’ performances.
"Anything that’s close up, that I’m on the ground, is me. Anything that’s being carried is a dummy," Rysdahl said. "WETA and this whole practical effects team — they do wonderful work — they made a body double of me, which was very strange to see. There’s so many selfies of me sitting next to this dead Arthur."
He described the sensory experience of the prosthetic. "They have like five different kinds. So the one that breathes, you know, later in [Episode] 7, that’s a different one than the one that they fling at you," Rysdahl said. "So it smells like rubber and a lot of KY jelly. Like you’re coated in KY jelly, your hair is. And it has a smell of you. You’re breathing into it for a whole day."
Rysdahl said the production shot the sequence sequentially, which he found helpful for maintaining a consistent emotional through-line. He said the physicality of wearing the Facehugger and the repeated takes affected him beyond the technical demands, contributing to nightmares after early shoots and grounding his performance in the later death scene.
The actor also discussed Arthur’s character arc across the season, saying the role shifts from a scientist who views hybrids as research subjects to a father figure who sees them as children with families. That transformation, Rysdahl said, informs the beach scene in Episode 7, when Arthur tends to two young hybrids, Slightly (Adarsh Gourav) and Smee (Jonathan Ajayi), shortly before his death.
"Noah and I talked about him going from scientist to father in the arc of the season," Rysdahl said, referring to series creator Noah Hawley. "In that moment, it’s very simple for him. There’s these two young kids who are deeply troubled, something’s going very wrong, and my father instincts have taken over."
Rysdahl described the tonal juxtaposition Noah Hawley is known for and how it shaped the sequence: the tenderness of Arthur’s parting words with the hybrids is undercut by the audience’s knowledge of the franchise’s history with chestbursters. "Noah just loves to dig it in," Rysdahl said. "Like, even the hand-holding at the end. It’s so darkly funny…and sad to have that moment be his last."
He also spoke about working with co-star Essie Davis, who plays Arthur’s wife, and the approach they took to make the relationship feel lived-in despite limited screen time. The two actors created backstory through improvised "fake dates," Rysdahl said, to build a believable history that would inform small on-screen interactions and deepen the impact of later scenes.
Rysdahl praised the performances of his on-screen charges, saying the actors who played the hybrids brought an "innocence" that made their characters’ descent more affecting. He described the on-set atmosphere during the beach sequence as intense and focused, with changing weather and tides adding to the urgency of the shoot.
On the technical side, Rysdahl explained that multiple puppet and prosthetic variants were used depending on the shot: a fling puppet for the attack, a breathing device for later shots and a more permanent prosthetic for extended close-ups. He said the repeated physical immersion in the prosthetic allowed him to react more truthfully when the device was removed and the scene moved toward the chest-burst moment.
The sequence follows a long-standing horror convention established by the original Alien (1979) films, in which a Facehugger attaches to a host and later produces a lethal chest-bursting offspring. Rysdahl acknowledged the audience’s awareness of that convention and said the production leaned into the tension between expectation and character emotion.
Rysdahl’s interview has been edited and condensed for clarity. Alien: Earth Episode 7, "Emergence," is available to stream on Hulu.