Only Murders in the Building Season 5 Cast Guide: Full Hulu Roster

Only Murders in the Building season 5 cast guide maps every series regular, headline guest star, and season-long recurring player in Hulu’s Emmy-winning mystery comedy after its September 9, 2025 premiere. Season 5 ran ten episodes through October 28, 2025, with Steve Martin, Martin Short, and Selena Gomez reprising Charles-Haden Savage, Oliver Putnam, and Mabel Mora as the Arconia podcasting trio investigating doorman Lester Coluca’s death. Michael Cyril Creighton returns as neighbor Howard Morris, while Meryl Streep, Da’Vine Joy Randolph, Richard Kind, and Nathan Lane reprise prior roles alongside newcomers Renée Zellweger, Christoph Waltz, Logan Lerman, Téa Leoni, Bobby Cannavale, Keegan-Michael Key, Beanie Feldstein, Dianne Wiest, and Jermaine Fowler. Entertainment Weekly and Hollywood Reporter documented the roster ahead of Hulu’s three-episode launch drop. This Pillar L reference page focuses on production-confirmed casting — not net-worth listicles, where-are-they-now profiles, or red-carpet fashion — so you can track who plays whom across the full season.

Unlike a standalone celebrity bio page, our Only Murders in the Building season 5 cast guide treats the season as an ensemble mystery event: Lester’s funeral opens a finger-in-the-coffin whodunit, mobster Nicky Caccimelio vanishes, billionaire poker players arrive at a secret Arconia casino, and Mayor Beau Tillman’s political ambitions collide with the building’s future. Hulu renewed the series in September 2024 during Season 4’s run; filming occurred March through June 2025 per Wikipedia production notes. USA Celebs attributes every credit to credited trade reporting; we do not invent castings, episode plots, or streaming windows Hulu has not announced.

Only Murders in the Building Season 5 Cast Guide: The Quick Snapshot

At the center of every Only Murders in the Building season 5 cast guide search is roster clarity after a casting push that stacked Oscar winners, comedy veterans, and returning franchise favorites. Hulu and 20th Television confirmed the following verified facts through trailers, cast announcements, and episode credits:

• Premiere: Tuesday, September 9, 2025 — three episodes dropped at once on Hulu; weekly Tuesdays through October 28 finale.
• Finale: October 28, 2025 — ten episodes total per Hulu and Wikipedia season listings.
• Core returns: Martin, Short, Gomez, Creighton — all billed as main cast.
• Major guest returns: Streep as Loretta Durkin; Randolph as Detective Donna Williams; Lane as Teddy Dimas; Kind as Vince Fish.
• Headline newcomers: Zellweger, Waltz, Lerman, Leoni, Cannavale, Key, Feldstein, Wiest, Fowler — announced March through August 2025.
• Central mystery: Lester Coluca (Teddy Coluca) dies; trio investigates alongside his widow Lorraine (Wiest) and replacement doorman Randall (Fowler).

For readers mapping Only Murders in the Building season 5 cast guide threads, expect parallel storylines: Charles reconnects with Broadway roots, Oliver navigates post-wedding chaos, Mabel mends a fractured friendship with pop star Althea (Feldstein), and the Caccimelio crime family pulls the Arconia into mob-and-casino intrigue.

Steve Martin as Charles-Haden Savage

Martin continues as Charles-Haden Savage — the retired actor and amateur sleuth who anchors every Only Murders in the Building season 5 cast guide. Season 5 opens at Lester’s funeral, where Charles discovers a severed finger that contradicts the official accidental-death ruling. Variety coverage notes Charles also follows a magnetic map hidden in Nicky Caccimelio’s deck of cards to a secret casino beneath the Arconia — a set piece that reunites him with his stage-actor instincts.

Charles’s romantic entanglement with Sofia Caccimelio (Leoni) generates mid-season complications when he loses his phone in her car, accidentally giving the trio a trail toward Tommy the Tongue shell-company money. Martin told press the season leaned into Charles’s vanity and vulnerability in equal measure — useful context for viewers tracking his arc from Season 1’s Bunny Folger case through Loretta Durkin’s Broadway return.

Martin Short as Oliver Putnam

Short returns as Oliver Putnam, the theatrical director whose flair for drama balances Charles’s methodical instincts. Season 5 places Oliver at the center of Lester’s flashback episode “After You,” which recounts decades of doorman history at the Arconia — including Oliver’s wedding day when Randall Winston (Fowler) began his first shift. Oliver also performs a DIY autopsy on Nicky’s frozen body in episode three “Rigor,” a dark-comedy beat Entertainment Weekly highlighted in its season preview.

Short’s partnership with Streep’s returning Loretta Durkin deepens when her apartment burns down and she joins the Flatbush theater investigation in episode six. For any Only Murders in the Building season 5 cast guide, Oliver remains the emotional bridge between the trio’s podcast ambitions and the building residents who rally in the finale.

Selena Gomez as Mabel Mora

Gomez continues as Mabel Mora, the art-world-connected millennial whose investigative instincts sharpen each season. Season 5 tests her friendship with Althea (Feldstein) — a former confidante who became pop star “Thē” and moved into the Arconia penthouse. Episode four “Dirty Birds” explores how Zoe’s death strained their bond; episode eight “Cuckoo Chicks” mends it when Althea reveals her hit song was written about Mabel.

Gomez executive-produces alongside Martin and Short; Hulu marketing consistently billed the trio as co-leads. Track Mabel’s billing in our Only Murders in the Building season 5 cast guide as Season 6 plans emerge — the Season 5 finale teases a new murder tied to Cinda Canning (Tina Fey).

Michael Cyril Creighton as Howard Morris

Creighton returns as Howard Morris, the effusive neighbor who appears in seven of ten episodes per Wikipedia credits. Howard organizes the staff revolt against robot doorman L.E.S.T.R. in episode five “Tongue Tied” and helps the trio escape the casino demolition trap in the finale. Creighton has been a series regular since Season 1; his elevated episode count in Season 5 reflects the building-wide ensemble climax Hulu promoted in its season synopsis.

Meryl Streep as Loretta Durkin

Streep reprises Loretta Durkin — Oliver’s Tony-winning love interest introduced in Season 4. She returns mid-season after her apartment fire, assisting the Flatbush theater investigation and posing as a psychic during Camila White’s women-only game night in episode eight. Hollywood Reporter noted Streep among the “special guest stars” Hulu confirmed alongside the core four; her limited episode count preserves guest-star billing while delivering pivotal finale-adjacent beats.

Da’Vine Joy Randolph as Detective Donna Williams

Randolph returns as Detective Donna Williams, the NYPD liaison who alternately assists and obstructs the trio. Williams identifies Tommy the Tongue as a shell company handling Nicky’s gambling money in episode five and joins Mabel’s undercover casino-room operation in episode eight. Randolph won an Oscar between seasons; her continued presence grounds the show’s law-enforcement B-story without overpowering the Arconia ensemble.

New Season 5 Additions: The Billionaire Triangle

March 2025 trades announced Christoph Waltz, Renée Zellweger, and Keegan-Michael Key in undisclosed roles later revealed as tech mogul Sebastian “Bash” Steed, hotelier Camila White, and Mayor Beau Tillman:

• Christoph Waltz as Bash Steed: Pharmaceutical-tech billionaire who manipulates Charles through a dating-app catfish and controls security-camera distribution at the Arconia.
• Renée Zellweger as Camila White: Hotel heiress who romanced Nicky Caccimelio and attempts to convert the building into a casino — holding the trio at gunpoint in episode seven.
• Keegan-Michael Key as Mayor Beau Tillman: Politician whose severed finger becomes the season’s macguffin; revealed as Lester’s killer in the finale per episode ten credits.

Logan Lerman joined in April 2025 as Jay Pflug, pharmaceutical heir who fakes a missing finger to manipulate the trio’s Wondify podcast deal. Entertainment Weekly’s character guide describes Jay as heir to Pflug Pharma — a family that “were Pflug Faucets until they became Pflug Pharma.”

The Caccimelio Family and Lester’s Legacy

August 2025 announcements confirmed Dianne Wiest as Lorraine Coluca — Lester’s widow — and Bobby Cannavale as Nicky Caccimelio, the “Dry-Cleaning King of Brooklyn” who vanishes before the season begins. Téa Leoni returns as Sofia Caccimelio after her Season 4 finale tease, desperately searching for Nicky while managing sons Tony, Johnny, Braden, Mikey, and Vinny (Shea Buckner, Dane DiLiegro, Aaron Dean Eisenberg, Cory Jeacoma, Evan Mulrooney).

Teddy Coluca plays Lester in flashback; Emory Cohen portrays young Lester in the doorman oral-history episode. Wiest told press she was starstruck joining Martin and Short on set — a sentiment Martin reciprocated in Hulu’s first-look materials. Our Only Murders in the Building season 5 cast guide lists the Caccimelios as the season’s primary crime-family throughline rather than a one-episode guest cluster.

Beanie Feldstein, Jermaine Fowler, and Building Regulars

Feldstein plays Althea (stage name “Thē”), Mabel’s estranged friend whose penthouse move and Wondify publishing deal complicate the investigation. She performs original song “Wish That You Were Me” per the Season 5 soundtrack release on October 24, 2025. Fowler portrays Randall Winston, Lester’s protégé doorman who discovers the elevator-crank murder weapon and honors Lester’s dying oath until the finale confession.

Recurring Arconia residents returning include Jackie Hoffman as Uma Heller, Jayne Houdyshell as Bunny Folger (flashback), James Caverly as Theo Dimas, and Paul Rudd voicing L.E.S.T.R. the robot doorman. Jane Lynch guest-starred as Sazz Pataki in legacy flashback context. Track these credits when cross-referencing our Only Murders in the Building season 5 cast guide with Hulu’s episode-by-episode guest lists.

Production Timeline and Filming

Understanding Only Murders in the Building season 5 cast guide casting moves requires the production chronology:

• September 4, 2024: Hulu renews for Season 5 during Season 4 broadcast.
• March 2025: Key, Waltz, and Zellweger join; filming begins.
• April 2025: Lerman, Fowler, and Feldstein announced.
• June 2025: Principal photography wraps per Wikipedia.
• August 2025: Wiest and Cannavale confirmed; Hulu sets September 9 premiere.
• October 24, 2025: Season 5 soundtrack album releases.

Creators Steve Martin, John Hoffman, and Selena Gomez maintained the show’s Upper West Side Arconia setting while expanding underground casino sets and Flatbush location work for Oliver’s backstory episode.

Release Schedule: Hulu Streaming Calendar

Season 5 followed Hulu’s binge-launch-plus-weekly model that Hollywood Reporter outlined in its premiere-date announcement:

• September 9, 2025: Episodes 1–3 — “Nail in the Coffin,” “After You,” “Rigor” — launch day triple drop.
• September 16, 2025: Episode 4 — “Dirty Birds.”
• September 23, 2025: Episode 5 — “Tongue Tied.”
• September 30, 2025: Episode 6 — “Flatbush.”
• October 7, 2025: Episode 7 — “Silver Alert.”
• October 14, 2025: Episode 8 — “Cuckoo Chicks.”
• October 21, 2025: Episode 9 — “LESTR.”
• October 28, 2025: Episode 10 — “The House Always…” — season finale.

International Viewing: Disney+ and Hulu

Disney+ carried Season 5 internationally while Hulu streamed in the United States — a distribution split Disney’s UK press release confirmed alongside the September 9 premiere. Post-finale viewing remains available on Hulu for U.S. subscribers; international audiences access the catalog through Disney+ territory licensing rather than unofficial upload accounts.

Most Asked Cast Questions: Quick Reference

• Did Steve Martin, Martin Short, and Selena Gomez return? Yes — all three lead every episode as Charles, Oliver, and Mabel.
• Is Meryl Streep back? Yes — she guest-stars as Loretta Durkin in select mid-to-late-season episodes.
• Who plays Lester’s killer? Mayor Beau Tillman (Keegan-Michael Key) — revealed in the finale per episode ten.
• How many episodes? Ten, September 9 through October 28, 2025.
• Who are the new billionaires? Waltz (Bash), Zellweger (Camila), and Lerman (Jay Pflug).
• Does the season end on a cliffhanger? Yes — Cinda Canning (Tina Fey) dies at the Arconia gates in the final scene, setting up future mystery.

Source Standards for This Guide

We prioritize Hulu press materials, Entertainment Weekly, Hollywood Reporter, Variety, and Wikipedia when episode credits align. We do not invent castings or plot twists — when trades report undisclosed roles before August character reveals, we note the announcement timing rather than speculate on parts.

Explore More on USA Celebs

• Browse our TV archive for more cast guides and release calendars in Pillar L.
• Search USA Celebs for additional Hulu mystery-comedy ensemble breakdowns.
• Pair this guide with Hulu’s official episode synopses when you want plot detail beyond cast and release facts.

Disclaimer: This Only Murders in the Building season 5 cast guide is for informational and entertainment reference only. Cast, release dates, and production details are sourced from publicly reported Hulu materials and trade coverage; unconfirmed roles are labeled as such. USA Celebs is not affiliated with Hulu, Disney+, or 20th Television.