Cape Town - Cali and Noelle Sheldon, the twins who played Ross and Rachel's baby Emma in seasons 9 and 10 of Friends, star in Jordan Peele's new horror, Us.
And fans of the popular 90s sitcom are shooketh!
The 16-year-old sisters take on the terrifying roles of Becca and Lindsey Tyler, the twin daughters of Elisabeth Moss's character, Kitty.
Since fans of cult sitcom discovered the unusual casting, they've taken to social media to reveal their surprise, and it's really funny!
Cali and Noelle have been flying under the radar since their appearance on Friends 17 years ago, but have since starred in a TV series and several short films.