Related Clues:

• 'The X-Files' extra
• Extrater-restrial
• Annie, e.g.
• It's out of this world
• Visitor to Earth
• Hallowe'en extraterrestrial
• Feature of many sci-fi films
• Martian, e.g.
• UFO crewman
• ALF, for one
• Film set aboard the Nostromo
• Higher-up individual?
• "Starman" hero, e.g.
• Rescued dog, e.g.
• Like some landscapes