The Ryan Murphy cinematic universe is marching its band out. Whether they’re focused on high-profile scandals or show choir misfits, the Emmy-winning creator’s series are known for casting familiar faces. While some fans might think of Sarah Paulson, Evan Peters or Emma Roberts right off the bat, Murphy’s latest limited series, The Watcher, features other actors who’ve also appeared in his previous titles.

Trying to decode the Watcher’s mysterious identity is already stressful enough, so we’ll do the other job of helping you figure out where you’ve seen these actors in Murphy’s other shows.

Left: Eric Liebowitz/Netflix

Jennifer Coolidge

The Watcher: Karen Calhoun is the outgoing and infectious realtor who sells the Brannocks their dream home, but she has some secret intentions herself.

Glee: Whitney S. Pierce is Brittany Pierce (Heather Morris)’s mom, who’s just as kooky as her cheerleader daughter.

Nip/Tuck: Candy Richards is a plastic surgery client who is looking to get butt implants because, after taking a DNA test, she believes she is of African American descent.

L-R: Eric Liebowitz/Netflix, Sabrina Lantos/FX

Margo Martindale

The Watcher: Mo knows everything that’s going on in the neighborhood thanks to her handy binoculars, but does that mean she’s capable of being the Watcher?

American Crime Story: Impeachment: Lucianne Goldberg is a literary agent and author who encourages Linda Tripp (Sarah Paulson) to secretly record White House intern Monica Lewinsky (Beanie Feldstein) talking about her sexual relationship with President Bill Clinton (Clive Owen).

Left: Eric Liebowitz/Netflix

Richard Kind

The Watcher: Mitch and his wife Mo are the Brannocks’ nosy neighbors who have no sense of boundaries.

Glee: Mr. Rifkin is Rachel Berry (Lea Michele)’s new agent, who encourages her to branch out into the world of Hollywood, away from her leading role as Fanny Brice in Funny Girl on Broadway.

L-R: Eric Liebowitz/Netflix, Saeed Adyani/Netflix

Joe Mantello

The Watcher: Posing as a building inspector, John Graff is an arrogant man who has secret ties to the Brannocks’ new house.

American Horror Story: New York City: Gino Barelli is a character in the upcoming season of the show, set in NYC.

Hollywood: Dick Samuels is a closeted executive at Ace Studios who is a champion for making Hollywood more boundary-breaking and inclusive.

Left: Eric Liebowitz/Netflix

Christopher McDonald

The Watcher: Detective Chamberlain is assigned to the Brannock family’s case, but he’s far from interested in helping them solve their mystery.

American Crime Story: Impeachment: Robert S. Bennett is President Clinton’s lawyer, representing him during the high-profile scandal.

Noma Dumezweni

The Watcher: After receiving a fatal cancer diagnosis, Theodora Birch takes on the Brannocks’ case as a private investigator.

Pose: Tasha Jackson is the mother of ballroom champion and house mother Elektra Evangelista.

The Watcher TrailerThe Brannocks face a nightmare after moving into a new house.