Borges, Werber and Rebelo (left to right in photo below) join lead actors/executive producers Steve Martin, who also created the hit series on Hulu, Martin Short and Selena Gomez, as well as new players in recurring roles Zach Galifianakis, Molly Shannon, Eva Longoria and Eugene Levy and the returning Meryl Streep in the upcoming fourth season.
All of the new characters will play important roles in the investigation into the murder of Sazz Pataki (Jane Lynch), Charles-Haden Savage's (Martin) stunt double from his years on the Brazzos series and its 2020 revival.
Disney Television Group President Craig Erwich revealed in a recent interview with Deadline that the Only Murders In the Building trio, Charles, Oliver (Short) and Mabel (Gomez), will kick off the new season with a trip to Los Angeles before returning to The Arconia in their search for Sazz's killer.
In the season three finale, Loretta (Streep), Oliver and Mabel considered moving to LA.
Only Murders in the Building, Hulu's most-watched original comedy series, is produced by 20th Television and is created and written by Martin and John Hoffman, who also executive produce along with Short, Gomez, Dan Fogelman and Jess Rosenthal.
Borges is perhaps best known for his role as Edgar in five seasons of FX's comedy series You're the Worst. He had a regular role on HBO's The Time Traveler's Wife. Other recent roles include Fox's Welcome to Flatch, Prime Video's Utopia (2020), and Netflix's dramedy series Living with Yourself.
Werber appeared opposite Catherine Keener and Rosa Salazar in the Netflix series Brand New Cherry Flavor and will soon be seen in the A24/HBO limited series The Sympathizer with Robert Downey Jr.