| 100% | ETHANS | 6 | Alien and Frome |
| 64% | ETHANS | 6 | Allen and Frome |
| 55% | ETHANS | 6 | Frome and others |
| 53% | SCIFI | 5 | Genre with aliens and time travel |
| 52% | ETHER | 5 | Outer space alien and the girl (5) |
| 51% | RIDLEY | 6 | Director Scott, known for Alien and Blade Runner |
| 50% | ALFS | 4 | Landon and an alien |
| 49% | HOAXES | 6 | Alien autopsies, crop circles and the like |
| 49% | SYFY | 4 | "Resident Alien" and "The Ark" cable channel |
| 49% | INVADERS | 8 | "Scooby-Doo and the Alien ___" |
| 49% | ALFS | 4 | Landon and a TV alien |
| 48% | SCIFI | 5 | Genre with robots and aliens |
| 48% | JOHNHURT | 8 | Starred in Alien and TV's Doctor Who and Merlin |
| 47% | ALFS | 4 | Landon and an alien from Melmac |
| 47% | LILO | 4 | 2002 Disney character who adopts an alien and calls him "Stitch" |
| 46% | CAMERON | 7 | James, who directed The Abyss and Aliens |
| 46% | SCI | 3 | ___-fi (literary genre with spaceships and aliens) |
| 45% | TEETER | 6 | Alien runs back and forth to queen, in a wobble |
| 45% | SCOTT | 5 | Ridley —, director of films Alien, Gladiator and Hannibal |
| 44% | ETS | 3 | Martians and other aliens (anagram of "set"): Abbr. |
| 43% | SIGOURNEY | 9 | First name of Aliens, WALL-E and Avatar actress |
| 43% | LUCAS | 5 | He thanked ''robots and aliens'' for his Honorary Oscar |
| 42% | YODA | 4 | The wise, diminutive and powerful green alien from "Star Wars" |
| 41% | ETTOCOMEY | 9 | Start of a radio communication between a 1982 film alien and former FBI director James? |
| 41% | ARRIVAL | 7 | 2017 Best Picture Oscar nominee based on a Ted Chiang novella about aliens and linguistics |
| 39% | SIGOURNEYWEAVER | 15 | *Actress in "Alien" and "Avatar" |
| 39% | SCIFI | 5 | Genre of "Alien" and "Arrival" |
| 39% | WEAVER | 6 | Sigourney ___, "Alien" and "Ghostbusters" star |
| 37% | STARFIRE | 8 | "Teen Titans Go!" TV and movie character who's an alien princess from Tamaran |
| 37% | JAIMEREYES | 10 | Young Mexican American who finds an alien scarab and becomes 18-Across: 2 wds. |