- Blooper: In the cold open, you can clearly see the dead mystery man move his eyes when Picard turns his head.
- Creator's Favorite Episode: Michael Piller remarked:I really loved that show. It's one of my favorites of the year. It was a perfectly realized classic mystery put together in a Star Trek format, which came together into a very satisfying episode.
Trivia / Star Trek: The Next Generation S4E14 "Clues"