Crossword clues for the word: NATHANFILLION The word NATHANFILLION has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for NATHANFILLION Showing 1 to 5 of 5 results Clue(s) "Castle" actor who plays Dr. Jim Pomatter in the 2007 film "Waitress" (2 wds.) "Castle" actor who plays new cop John Nolan on the new ABC police drama "The Rookie" (2 wds.) "Firefly" actor who plays Jacques Snicket on Netflix's "A Series of Unfortunate Events" (2 wds.) "Firefly" actor who stars in the ABC procedural "The Rookie": 2 wds. Actor who plays rookie John Nolan on "The Rookie" (2 wds.)