Only Murders in the Building Season 3 – Cast, Killer & More

The third season of Only Murders in the Building transported the amateur sleuthing trio from the halls of the Arconia to the chaotic world of Broadway. Premiering in August 2023, the season followed Charles, Oliver, and Mabel as they investigated the on-stage collapse and subsequent death of a temperamental lead actor. With a star-studded cast that included Meryl Streep and Paul Rudd, the season wove together theatrical ambition, family secrets, and the trademark blend of comedy and mystery that defines the series.

The investigation centered on Ben Glenroy, the arrogant star of Oliver’s play Death Rattle Dazzle, who died under circumstances that initially appeared to be a single event. As the trio dug deeper, they uncovered two connected crimes—a poisoning and a fatal push—leading them through a web of suspects among the cast, crew, and producers. The season concluded with a reveal that tied back to themes of parental protection and professional desperation.

Who’s in the Cast of Only Murders in the Building Season 3?

Key Insights at a Glance

• The season shifts setting to Oliver’s Broadway play Death Rattle Dazzle.
• Meryl Streep joins the ensemble as Loretta Durkin, a cast member with a secret past.
• Paul Rudd portrays Ben Glenroy, the victim, appearing in flashbacks and a post-revival scene.
• The killer is Donna DeMeo, the play’s producer, acting to protect her son Cliff.
• Season 3 received a 96% critics’ score on Rotten Tomatoes.
• The season ends with a cliffhanger pointing to a movie production in Season 4.
• No member of the core trio is involved in the murder, preserving the series’ future.

Season 3 Snapshot Facts

The core trio of Steve Martin as Charles-Haden Savage, Martin Short as Oliver Putnam, and Selena Gomez as Mabel Mora returned for all ten episodes. The season also featured Michael Cyril Creighton as Howard Morris, an Arconia resident whose partner’s understudy role provided an early motive.

Among the special guest stars, Paul Rudd appeared in eight episodes as Ben Glenroy, the temperamental lead actor and victim. Meryl Streep joined in six episodes as Loretta Durkin, Oliver’s love interest and a cast member initially suspected in Ben’s death. Their additions significantly raised the season’s profile. You can find the full cast list on the Wikipedia – Only Murders in the Building season 3 page.

Complete Episode Guide for Only Murders in the Building Season 3

Only Murders in the Building Season 3 consists of 10 episodes, released weekly on Hulu starting August 8, 2023. Each episode builds on the mystery of Ben Glenroy’s death while advancing character relationships and theatrical subplots.

What Happens in Season 3 Episode 1?

The season opens with Ben Glenroy collapsing on stage during the opening night of Oliver’s play Death Rattle Dazzle at the Arconia. The trio immediately begins investigating, assuming the incident is a straightforward murder. The episode sets up the theater setting and introduces the primary suspects among the cast and crew.

Full Episode List

1. Nowhere to Be Found – Ben collapses on stage.
2. The Beat Goes On – The trio restarts their podcast amid theater chaos.
3. Grab Your Tambourine – Suspect interviews reveal poisoning clues.
4. Your Funeral – Flashbacks explore Ben’s abrasive behavior.
5. Ah, Love! – Romantic subplots deepen, including Oliver and Loretta.
6. Wipe Twice – The elevator shaft murder is confirmed as a separate crime.
7. Coachella – A desert detour uncovers new evidence.
8. Sitzprobe – A musical rehearsal introduces additional twists.
9. Thirty – The penultimate episode builds tension toward the finale.
10. Finale: A Tale of Two Hamlets (or) Nothing Left to Lose – The killer is revealed, and a cliffhanger sets up Season 4.

For a detailed episode-by-episode breakdown, including user ratings, the IMDb – Season 3 Episode Guide provides air dates and synopses.

Who Killed Ben Glenroy? The Season 3 Killer Revealed

The Season 3 finale unravels Ben Glenroy’s death as two distinct crimes committed by a mother-son duo. This reveal was confirmed across multiple recaps and analyses from sources including Den of Geek and Radio Times.

The Poisoning: Donna DeMeo

Donna DeMeo, played by Jane Lynch, poisoned Ben by lacing a Schmackary’s cookie with rat poison from the stage manager’s office. Her motive was to sideline Ben’s “subpar performance” to protect her son Cliff’s producing debut after a bad review. Ben collapsed on stage but survived after having his stomach pumped.

The Fatal Push: Cliff DeMeo

Cliff DeMeo, played by Wesley Taylor, shoved Ben down the Arconia elevator shaft after Ben confronted him about the poisoned cookies, initially blaming Cliff. Cliff panicked as Ben got closer to the truth. This occurred after Ben’s recovery, while he was en route to his penthouse.

How Was the Murder Solved?

The finale reveals that Donna initially poisoned Ben to protect Cliff’s reputation. When Ben survived and confronted Cliff, the son’s panic led to the fatal push. The trio’s investigation relied on reconstructing the timeline of Ben’s final hours and connecting the physical evidence. No member of the main trio was involved in the crime, ensuring the series could continue with its core dynamic intact.

The Rotten Tomatoes – Season 3 Reviews page notes that the season was praised for its clever resolution and the emotional weight of the DeMeo family’s story.

Where to Watch Only Murders in the Building Season 3 Online

Season 3 of Only Murders in the Building is available through several streaming and digital purchase platforms. As of the most recent updates, the primary distribution remains exclusive to Hulu in the United States and Disney+ internationally.

Streaming on Hulu and Disney+

All 10 episodes of Season 3 stream exclusively on Official Hulu Season 3 page in the US and Canada. International viewers can access the season through Disney+ (international) – Season 3. An ad-supported Hulu tier is available for those seeking a lower-cost option.

Digital Purchase and Rental Options

Episodes and full seasons can be purchased or rented from platforms including Amazon Prime Video, Apple TV, YouTube, and Google Play. Prices typically range from $2–3 per episode or $20–30 for the full season.

Free Viewing Options

There are currently no legal free streaming options for Season 3. The ad-supported Hulu tier is the most affordable legitimate way to access the season. No free trials or promotional offers have been widely reported.

Timeline of Season 3: From Announcement to Finale

1. July 11, 2022 – Season 3 officially announced by Hulu.
2. January 2023 – Meryl Streep and Paul Rudd cast announcements.
3. August 8, 2023 – Season 3 premieres with episodes 1 and 2.
4. September 2023 – Episodes released weekly every Tuesday.
5. October 3, 2023 – Season 3 finale airs; killer revealed.
6. October 2023 – Hulu renews series for Season 4.

What’s Confirmed and What’s Unclear About Season 3?

Critical Reception and Thematic Context of Season 3

Season 3 was widely praised for its theatrical setting and the addition of Meryl Streep. Critics highlighted the show’s continued ability to blend comedy and mystery, with many calling it the strongest season yet. The murder mystery focused on behind-the-scenes drama of a Broadway play, allowing for meta-humor about acting and true crime. Compared to earlier seasons, the expanded ensemble did not lose focus on the core trio. The season also set up a new narrative direction involving a movie production for Season 4.

What Critics and Sources Said About Season 3

The third season of the American mystery comedy-drama television series Only Murders in the Building premiered on August 8, 2023, on Hulu.

— Wikipedia (Season 3 article)

The critics consensus: ‘Only Murders in the Building’s third season is a showstopper, featuring a stacked cast and a mystery that keeps viewers guessing until the final curtain.’

— Rotten Tomatoes (Season 3 page)

Summary: What You Need to Know About Only Murders in the Building Season 3

Season 3 of Only Murders in the Building delivered a tightly plotted mystery set against the backdrop of Broadway, with standout performances from Meryl Streep and Paul Rudd. The killer reveal—Donna DeMeo acting to protect her son—provided a satisfying conclusion while setting up a new direction for Season 4. For those new to the series, the Only Murders in the Building Season 3: Comprehensive Research Summary offers additional depth.

Frequently Asked Questions About Only Murders in the Building Season 3