Even with an all-star cast assembled for Glass Onion: A Knives Out Mystery, director Rian Johnson was still able to sneak in a surprising role for Joseph Gordon-Levitt. The new Knives Out brought back Daniel Craig as Detective Benoit Blanc to help solve another murder mystery, set on an island owned by a billionaire played by Ed Norton. One of the many extravagant displays of wealth on the island was an hourly dong, which would sound periodically throughout Glass Onion. Instead of the dong being a simple sound effect, Joseph Gordon-Levitt was recruited to be the "hourly dong."