Only Murders in the Building Season 5 officially premiered on Hulu and Disney+ on September 9, 2025, bringing the beloved podcasting trio back to the Arconia for their most dangerous case yet. While the core chemistry between Charles, Oliver, and Mabel remains the heart of the series, this season has elevated the stakes with a massive influx of A-list talent and a plot that weaves together high-stakes finance and organized crime.

Following the shocking events of the Season 4 finale, the fifth installment focuses on the mysterious death of Lester, the Arconia’s long-time doorman. This central mystery introduces a wealth of new characters, from Staten Island mobsters to eccentric tech billionaires, making the Season 5 cast list one of the most impressive in television history.

The Iconic Main Trio Returns

The foundation of the series continues to be the legendary trio who started it all. In Season 5, their individual arcs are deeply influenced by the arrival of new neighbors and the looming threat of the "Dry-Cleaning King of Brooklyn."

Steve Martin as Charles-Haden Savage

Steve Martin returns as the former TV detective Charles-Haden Savage. This season, Charles finds himself grappling with the loss of Sazz Pataki while trying to maintain order in an increasingly chaotic Arconia. Martin’s performance remains a masterclass in dry wit, especially during the sequences where he investigates the secret casino rooms hidden beneath the building.

Martin Short as Oliver Putnam

Martin Short breathes life into the flamboyant theater director Oliver Putnam. Following his high-profile wedding, Oliver is thrust into a mid-life (or late-life) crisis as he deals with the realization that his DNA might be linked to a crime scene. Short’s energy is particularly palpable in Episode 4, "Dirty Birds," where he attempts to interrogate a group of billionaires in his own living room.

Selena Gomez as Mabel Mora

Selena Gomez continues to ground the show as Mabel Mora. In Season 5, Mabel’s past comes back to haunt her in the form of a childhood friend turned pop superstar. Gomez delivers a nuanced performance as Mabel navigates the complexities of her new podcasting deal with Wondify while trying to figure out which of the building's new elite residents can be trusted.

The Central Mystery: The Coluca Family

Season 5 centers on the death of Lester Coluca, the man who knew every secret of the Arconia. The cast expansion around his character provides the emotional weight of the season.

Teddy Coluca as Lester

While Lester has been a background fixture since Season 1, Teddy Coluca finally takes center stage—albeit as the victim. Through a series of poignant flashbacks in Episode 2, "After You," viewers get to see Lester’s first day at the Arconia in 1993, offering a heartbreaking look at his long history with the residents.

Dianne Wiest as Lorraine Coluca

Academy Award winner Dianne Wiest joins the cast as Lorraine, Lester’s grieving widow. Her portrayal adds a layer of gravitas to the investigation, as she provides the trio with crucial information about Lester’s secret connections to the Caccimelio crime family.

New Additions and High-Profile Guest Stars

One of the hallmarks of Only Murders in the Building is its ability to attract legendary actors for recurring roles. Season 5 features perhaps the most ambitious guest lineup to date.

Renée Zellweger as Camila White

Renée Zellweger enters the Arconia as Camila White, a ruthless hotelier and one of the three billionaires suspected of involvement in the season's double homicide. Zellweger brings a sharp, intimidating edge to the group, contrasting perfectly with Oliver’s frantic energy.

Christoph Waltz as Sebastian "Bash" Steed

Christoph Waltz portrays Sebastian "Bash" Steed, a tech mogul with a penchant for high-stakes gambling and secret societies. Waltz utilizes his signature charm and underlying menace to keep the audience guessing about his true intentions until the final episodes.

Logan Lerman as Jay Pflug

Logan Lerman plays Jay Pflug, the heir to a pharmaceutical fortune who becomes a prime suspect when a severed finger found by the trio is linked to him. Lerman’s performance captures the anxiety of a young man trapped between his billionaire status and a dark secret involving the Caccimelios.

Téa Leoni as Sofia Caccimelio

Téa Leoni makes a powerful impact as Sofia Caccimelio, the wife of the "Dry-Cleaning King." Her character represents the intersection of the Arconia's luxury and the gritty world of organized crime. Leoni’s interactions with Mabel provide some of the season's most tense moments.

Bobby Cannavale as Nicky Caccimelio

Bobby Cannavale plays Nicky Caccimelio, the central mob figure whose disappearance and eventual death spark the season's conflict. Cannavale’s presence, even in frozen form or flashbacks, looms large over the narrative.

Who is in the Only Murders in the Building Season 5 cast?

Beyond the main suspects, the supporting cast for Season 5 is filled with recognizable faces that populate both the Arconia and the surrounding New York landscape.

  • Keegan-Michael Key as Mayor Beau Tillman: A politician who warns the trio about the dangers of investigating the city's elite.
  • Beanie Feldstein as Althea: A world-famous pop singer and Mabel’s former friend who moves into the Arconia penthouse.
  • Jermaine Fowler as Randall Winston: The new doorman hired to replace Lester, who may know more than he lets on.
  • Michael Cyril Creighton as Howard Morris: Now a series regular, Howard continues to be the trio’s most eager (and often most annoying) assistant, accompanied by his new animal companion.

Returning Favorites and Cameos

Despite the influx of new blood, Season 5 honors the show's history by bringing back several beloved characters.

Meryl Streep as Loretta Durkin

Meryl Streep reprises her role as Loretta Durkin, Oliver’s love interest. Although her career takes her to the streets of Flatbush in Episode 6, her presence remains a vital emotional anchor for Oliver throughout the season.

Da'Vine Joy Randolph as Detective Donna Williams

The Emmy-winning Da'Vine Joy Randolph returns as Detective Williams. Her skepticism of the trio's podcasting methods remains as sharp as ever, though she finds herself increasingly entangled in the legal complexities of the billionaire suspects.

Nathan Lane as Teddy Dimas

Nathan Lane makes a welcome return as Teddy Dimas. His history with the Arconia and his previous criminal exploits provide the trio with necessary insight into how the secret casino room operated under the radar for so many years.

Special Cameos and Flashbacks

The show continues its tradition of using ghosts and memories to fill in the blanks. Season 5 includes appearances by:

  • Jane Lynch as Sazz Pataki (in flashbacks).
  • Julian Cihi as Tim Kono.
  • Jayne Houdyshell as Bunny Folger.
  • Paul Rudd as the voice of L.E.S.T.R.: In a creative twist, Rudd provides the voice for the "Logic Engineered Secure Tenant Robot" that briefly replaces the human doormen of the Arconia.

The Caccimelio Family and the Staten Island Connection

A significant portion of the Season 5 cast is dedicated to the Caccimelio family, the organized crime group that owns the Arconia's dry-cleaning service. This group includes:

  • Shea Buckner as Tony Caccimelio.
  • Dane DiLiegro as Johnny Caccimelio.
  • Aaron Dean Eisenberg as Braden Caccimelio.
  • Cory Jeacoma as Mikey Caccimelio.
  • Evan Mulrooney as Vinny Caccimelio.

The presence of this large family ensemble allows the show to explore a different side of New York, shifting the action from the Upper West Side to Staten Island and back again.

Frequently Asked Questions about the Season 5 Cast

Is Meryl Streep in Only Murders in the Building Season 5?

Yes, Meryl Streep returns as Loretta Durkin. While she is not in every episode, she plays a crucial role in Oliver's storyline, particularly in the episodes exploring his childhood memories and his relationship's future.

Who plays the new doorman in Season 5?

The new doorman, Randall Winston, is played by Jermaine Fowler. Randall is introduced as Lester's successor, but he quickly becomes a person of interest for the trio due to his timing and his access to Lester’s ledger.

Who are the billionaires in Only Murders in the Building Season 5?

The "Billionaire Trio" consists of Renée Zellweger as Camila White, Christoph Waltz as Sebastian "Bash" Steed, and Logan Lerman as Jay Pflug. They are introduced as the new majority owners of Wondify, the podcast network the trio signs with.

Does Paul Rudd appear in Season 5?

While Paul Rudd’s character Ben Glenroy was the focus of previous seasons, he returns in Season 5 in a unique way—providing the voice for L.E.S.T.R., the Arconia's short-lived robot doorman.

Summary of the Only Murders in the Building Season 5 Cast

The fifth season of Only Murders in the Building has successfully expanded its universe by blending the familiar charm of its leads with a high-octane guest cast. From the emotional depth provided by Dianne Wiest to the menacing sophistication of Christoph Waltz and Renée Zellweger, every new addition serves the central mystery of Lester's death.

With the return of veterans like Meryl Streep and Nathan Lane, the show maintains its continuity while venturing into new territory involving the Caccimelio crime family. As the trio heads toward the Season 6 mystery in the United Kingdom, the Season 5 ensemble will be remembered for delivering some of the most complex and entertaining character dynamics in the series' history. The combination of seasoned legends and rising stars ensures that the Arconia remains the most interesting—and deadliest—address in New York City.