Dunne, who appeared in My Girl and After Hours and directed Practical Magic and Joan Didion: The Center Will Not Hold, is the mysterious Dudenoff. He was the Brothers sisters’ film professor and also lived in the West tower of the Arconia.

The tennis star appears in episode 5 while Oliver is outside the Arconia trying to recreate Sazz’s murder for research. When Oliver yells at a group of young kids in his way, McEnroe, supposedly a stranger on the street, answers with a display of own infamous temper. “Yelling at children? Are you serious?!” he shouts, then chases Oliver into the Arconia.

Paul Rudd returns! But wait, wasn’t his character last season’s murder victim? That’s right, but Rudd isn’t reprising his role as actor Ben Glenroy here; instead, he’s introducing Glen Stubbins, Ben’s Irish stunt double, which explains their uncanny resemblance.

Just because Sazz is gone, doesn’t mean Jane Lynch is too. The reprises her role as Sazz in Charles’s subconscious, as he starts seeing visions of her during the investigation.

The renowned character actor appears as “Stink-Eye Joe,” a suspicious resident of the Acronia’s west tower. His real name is Vince Fish, and his “stink eye” is really a bad case of “pink eye.”

Jan is back. In episode 2, the convicted murderer (played by Gone Baby Gone and The Office’s Amy Ryan) escapes from prison and comes to Charles’s apartment via the Acronia’s secret passageway system because she was worried about Sazz.

Not long after her Oscar win, Randolph returns to OMitB as Detective Donna Williams, who is begrudgingly working yet on another Arconia murder case.

The Silicon Valley and Big Sick star plays a mysterious resident of the Arconia west tower. Charles calls him Christmas-all-the-time Guy because he never puts down his decorations. (We later find out, though, that all the decor is just freebies from his influencing job.)

Broadway star Daphne Rubin-Vega (who originated Mimi Marquez in Rent and appeared in the In the Heights film) joins as Inez, a resident of the west tower of the Arconia. She’s a potential suspect with a deep love for Brazzos.

The icon and legend herself returns as Loretta Durkin, Oliver’s love interest and now a breakout TV star living in L.A. The Sophie’s Choice, Mamma Mia!, and The Devil Wears Prada star first joined in season 3 as a meek actress cast in Oliver’s musical and protective mother of Dickie, Ben Glenroy’s adopted brother.

The Schitt’s Creek and American Pie star plays himself, cast to portray Charles (Steve Martin) in the film adaptation of the podcast. (Do you think it was the glasses?) This marks another collaboration for Levy and Martin, following films like Father of the Bride and Cheaper by the Dozen 2.

After returning to TV in Land of Women, the Desperate Housewives alum nabs another television role as herself, cast to play Mabel (Selena Gomez) in the film. She jokes that the character was aged up to make her friendship with Charles and Oliver less “creepy.”

The Hangover star is also playing himself, cast as Oliver (Martin Short) in the film adaptation. He’s reluctant to keep the part after Oliver doesn’t recognize him.

The comedy legend, who has appeared in the likes of Superstar, Saturday Night Live, and Wet Hot American Summer (and let’s not forget her recent turn on The Other Two) is also in this season. She plays Bev Mellon, the Paramount studio exec who meets with Charles, Mabel, and Oliver about turning their podcast into a movie.

You might recognize Cohen from her comedy special, The Twist…? She’s Gorgeous, or as the co-host of the Seek Treatment with Cat & Pat podcast. Meanwhile, Werber has starred in the Netflix series Brand New Cherry Flavor and The Sympathizer earlier this year. Together, the actors portray twin sisters and directors called The Brothers (that’s their last name), who will helm the Only Murders film.

Yes, that is Pachinko star Jin Ha, who plays Solomon Baek in the Apple TV+ series, behind all that hair. On OMitB, he plays the screenwriter of the podcast’s film adaptation.