The following contains spoilers for Only murders in the building Season 4, Episode 1, “Once Upon a Time in the West”.”

Only murders in the building has returned with its most star-studded season yet, with Oliver, Charles and Mabel’s podcast titles representing the Dons’ big-screen ambitions. As in previous episodes, Season 4 begins with a mix of celebrities playing comical versions of themselves and completely original characters. Here’s a rundown of all the guest stars who have appeared in Only murders in the building’s fourth season premiere, “Once Upon a Time in the West.”

There’s a Murder in the Building, Season 4, Episode 1, Guest Stars

Meryl Streep returns as Loretta Durkin

Award-winning actress Meryl Streep appeared Only murders in the buildingIn Season 3 of the theatrical version, she plays murder suspect Loretta Durkin, who becomes romantically involved with Martin Short’s Oliver Putnam. In Season 4, Loretta’s acting ambitions are finally fulfilled, setting the stage for conflict in the budding romance between her and Oliver as the two try to balance their love lives with their ambitious Hollywood dreams.

Zach Galifianakis, Eugene Levy and Eva Longoria as film versions of Oliver, Charles and Mabel

Season 4 of Only murders in the building flirts with the fourth-wall-breaking cliché of feature film adaptation used in a bevy of franchises, from shows like OneTreeHill And The L-word to Scream Movies. When Hollywood calls, a cinematic filter is applied to the events of the first seasons of the series, complete with actors who Only murders in the buildings podcasters who focus on crime solving. Zach Galifianakis, Eugene Levy and Eva Longoria play themselves as doubles of Oliver, Charles and Mabel on screen.

Molly Shannon as Bev Melon

From Liz Lemon to Bev Melon, Tina Feys Only murders in the building Toxic girl boss Cinda Canning may have found a spiritual successor in her colleague Saturday Night Live Bev is Paramount Pictures executive Molly Shannon, who is determined to turn the titular true-crime podcast into a hit feature film before Christmas and must team up with Selena Gomez’s angsty Mabel in Once Upon a Time in the West to make her dreams a reality.

Scott Bakula as himself

Scott Bakula was the first surprise appearance of Only murders in the building Season 4, where he settled one of the show’s longest running gags. The Quantum leap The star’s name has always been a sore spot for Steve Martin’s Charles-Haden Savage, who finally came face to face with Bakula in Once Upon a Time in the West. The two syndicated stars shared a stunt double in Sazz Pataki, with Bakula confirming Charles’ fears about his missing friend. Only murders in the buildingPremiere.

Although not on screen in Only murders in the buildingIn the premiere of The Last Jedi, the ghost of Jane Lynch’s Sazz promises to play a major role in season four as the gang solves their latest murder investigation.

Who else has plans for season 4 of “Only Murders in the Building”?

Although the audience has already seen a number of Only murders in the buildingAlthough the guest stars of the fourth season of Once Upon a Time in the West were promised, not all of the suspects and allies in the case were assembled in Once Upon a Time in the West. Kumail Nanjiani, Richard Kind and Melissa McCarthy are among the guests slated for the fourth season of the series, with the latter playing Charles’ sister. In addition to the announced guests, fans of the Hulu series should keep their eyes peeled for more Bakula-style cameos, as Only murders in the buildingThe intrepid podcasters of find their way in Hollywood.

And that is every guest star in Only murders in the building Season 4, Episode 1.

“Only Murders in the Building” is now streaming on Hulu.