Crossword clues for the word: MUMY The word MUMY has appeared as an answer to at least 4 crossword clues on different crossword puzzles. Crossword clues for MUMY Showing 1 to 4 of 4 results Clue(s) """Lost in Space"" actor Bill" """Lost in Space"" child actor Billy" "Billy of ""Lost in Space""" Bill —, actor who played Lennier in US television series Babylon 5