Crossword clues for the word: MARTIANCHILD The word MARTIANCHILD has appeared as an answer to at least 1 crossword clue on different crossword puzzles. Crossword clues for MARTIANCHILD Showing 1 to 1 of 1 results Clue(s) Film starring John Cusack and Joan Cusack as a brother and sister taking care of a boy who believes he's from space (2 wds.)