Only Murders in the Building Expands Star Power with New Season 5 Cast Members

A New Chapter in Mystery Entertainment

Only Murders in the Building, the beloved mystery comedy-drama created by Steve Martin and John Hoffman, follows three strangers with a shared passion for true crime podcasts who become friends while investigating suspicious murders in their upscale Manhattan apartment building, the Arconia.

Stellar Cast Additions for Season 5

The series has announced an impressive roster of new talent joining the cast, including Melissa McCarthy, Keegan-Michael Key, Christoph Waltz, and Renée Zellweger in undisclosed roles. The expanding ensemble also welcomes Logan Lerman, Jermaine Fowler, and Beanie Feldstein, with Dianne Wiest and Bobby Cannavale joining as Lester’s wife and a mobster, respectively.

Critical Acclaim and Success

The show continues to receive widespread acclaim, with the third season earning a remarkable 96% approval rating on Rotten Tomatoes. Critics particularly praised the series for “relocating the action to the theatre” and maintaining its signature “good-humored touch” in handling twisty mysteries.

Production and Development

The fifth season, which premiered on September 9, 2025, completed filming between March and June 2025. The series has maintained its critical acclaim since its debut, earning praise for its comedic approach to crime fiction and cast performances. The show’s success has led to expanded availability, with its addition to Disney+ in the United States via the Hulu hub, and its second season making its broadcast television premiere on ABC.

Looking Ahead

When asked about the show’s future, creators have drawn inspiration from Agatha Christie’s extensive bibliography, noting that “there’s a great tradition of many volumes and many seasons around murder mystery.” The series maintains its connection to classic mystery traditions, including nods to The Hardy Boys, suggesting that “there’s always a mystery to be solved somewhere.”