A number of top VFX houses worked on Ridley Scott's long-awaited return to the Alien franchise, including MPC, Fuel VFX, Luma Pictures and Weta Digital. The New Zealand-based company were tasked with rendering the film's new race of giant humanoid extraterrestrials, which involved digitally enhancing the on-set performance of a costumed actor. "The engineer had unique challenges," Weta's VFX supervisor Martin Hill said. "Usually we would strive to make a digi character as anatomically accurate as possible in terms of its musculature, articulation, and the thickness and pliability of the fat under the skin … We had to make some compromises to match an actor in silicone prosthetics."
Designing the look of the engineers was a job that fell to concept artist Neville Page, probably best known for his creature work on the J.J. Abrams Star Trek reboot trilogy as well as the new Star Trek: Discovery TV series. Page told Wired that when Scott first approached him, the director envisioned the engineers as a mixture between some well-known statues and one legendary musician. "When Ridley first asked me to be involved with the engineer, he was very specific about what he wanted it to look like in terms of metaphors," Page said. "I was looking at references of the Statue of Liberty, the Michelangelo sculptures—specifically David—and, oddly, Elvis Presley."