All The Celebrity Cameos In Glass Onion: A Knives Out Mystery

Yo-Yo Ma

The 67-year-old cellist appears in one of the first scenes of Glass Onion, telling Kate Hudson’s character Birdie Jay which Bach-composed piece Miles used in his puzzle box invite. Of course, she tries to Shazam the song anyway.

Stephen Sondheim, Angela Lansbury, Natasha Lyonne & Kareem Abdul-Jabbar

The cameos from Sondheim and Lansbury mark both actors’ final screen appearances; they died in late 2021 and late 2022, respectively.

Sondheim and Lansbury, along with former professional basketball player Abdul-Jabbar and Lyonne, are seen playing the virtual game Among Us over Zoom with Blanc. This isn’t the last Rian Johnson project for Lyonne: She’s set to star in his upcoming Peacock TV series, Poker Face.

Ethan Hawke

The Oscar-nominated actor is credited as “Efficient Man,” who is the person forcing Miles Bron’s guests to inhale a substance that supposedly eradicates COVID from their systems before boarding a boat to his private island.

Hugh Grant

Before the film’s release, director Rian Johnson confirmed that Daniel Craig’s detective character Benoit Blanc is queer. But nothing could have prepared fans for the reveal of his onscreen partner, played by Grant.

Jared Leto’s... Kombucha

Much like Renner’s hot sauce, Leto’s hard kombucha in Glass Onion is very fake. Instead, everyone just says they’re drinking Leto’s special blend, but it ends up driving the story and amplifying tensions in ways normal kombucha just never could.

Jeremy Renner’s... Hot Sauce

No, Jeremy Renner does not have a hot sauce in real life. But his likeness is used on a fictional hot sauce that ends up playing a pivotal role in the movie’s game-changing twist.

Serena Williams

Williams makes a virtual appearance in billionaire Miles Bron’s gym as the instructor of Fitness with Serena. Shockingly, the guests decline her (fictional) services.

Joseph Gordon-Levitt’s... Voice

The actor has appeared in every one of Johnson’s films, including the first Knives Out, in which he voices Detective Hardrock, a fictional character within a fictional TV show in the film. Naturally, he pops up in Glass Onion as the voice of Miles’ hourly “dong” on his island.