Meet the Star-Studded Cast of ‘The Sheep Detectives’: Voices Behind the Animated Whodunit

The Sheep Detectives, the latest animated whodunit from Amazon MGM, delivers a star-studded voice cast that’s already earning critical acclaim. The family-friendly mystery follows a group of sheep as they investigate the murder of their shepherd—played by Hugh Jackman—while the bumbling police fail to solve the case. Written by Craig Mazin, the co-creator of The Last of Us and Chernobyl, the film blends humor and suspense with an impressive lineup of A-list talent.

Here’s your complete guide to the cast and characters voicing the sheep in this murder-mystery comedy.

The Sheep Detectives Cast and Characters

Julia Louis-Dreyfus as Lily

Julia Louis-Dreyfus lends her voice to Lily, the sharp-witted sheep leading the investigation. Best known for her Emmy-winning roles in Seinfeld and Veep, Louis-Dreyfus has also made waves in the Marvel Cinematic Universe as Valentina Allegra de Fontaine and reunited with director Nicole Holofcener in You Hurt My Feeling. She previously voiced characters in Onward.

Bryan Cranston as Sebastian

Bryan Cranston voices Sebastian, the loyal and determined sheep. Cranston rose to global fame as Walter White in Breaking Bad and has since starred in The Studio, the Malcolm in the Middle revival, and animated films like Kung Fu Panda 4.

Sir Patrick Stewart as Sir Ritchfield

Sir Patrick Stewart brings gravitas to Sir Ritchfield, the wise and dignified sheep. Stewart is iconic for his role as Captain Jean-Luc Picard in Star Trek: The Next Generation and the Star Trek: Picard revival. He’s also a longtime Professor Charles Xavier in the X-Men franchise and will reprise the role in Avengers: Doomsday, arriving in theaters December 2025.

Regina Hall as Cloud

Regina Hall voices Cloud, the optimistic and resourceful sheep. Hall gained widespread acclaim in 2025 for her role in Paul Thomas Anderson’s Oscar-winning One Battle After Another. She’s also a fan favorite from Scary Movie, Girls Trip, and the Showtime series Black Monday. Hall will next star in Scary Movie 6, reuniting with co-star Anna Faris.

Bella Ramsey as Zora

Bella Ramsey voices Zora, the brave and curious sheep. Ramsey first gained recognition as Lyanna Mormont in Game of Thrones and skyrocketed to fame as Ellie in HBO’s The Last of Us—a series co-written by Craig Mazin, the same writer behind The Sheep Detectives.

Chris O’Dowd as Mopple

Chris O’Dowd voices Mopple, the lovable and slightly clumsy sheep. O’Dowd is known for his roles in Bridesmaids, Moone Boy, and The Sapphires, as well as the Apple TV+ series The Big Door Prize.

The Sheep Detectives brings together some of Hollywood’s biggest names to create a fresh, family-friendly mystery with humor and heart. The ensemble cast elevates the whodunit genre, making it a must-watch for audiences of all ages.