Sci-fi characters are a popular trope in science fiction literature and films. The crossword solutions for the term Sci-fi Character include ALIEN (5 letters), MUTANT (6 letters), CYBORG (6 letters), ROBOT (5 letters), MARTIAN (7 letters), and The Blob (7 letters). Aliens are typically extraterrestrial creatures that come from other planets or galaxies. Mutants are often humans or animals that have been genetically altered, usually by radiation or some other form of mutation. Cyborgs are a combination of organic and mechanical parts, often used to enhance physical abilities. Robots are artificial intelligence machines that are programmed to perform specific tasks. Martians are inhabitants of the planet Mars, often depicted as humanoid aliens. The Blob is an amorphous creature that absorbs and consumes anything in its path.