The cast of Sherlock Holmes bring a new mystery to the stage… just a few minutes’ walk from Baker Street

WhatsOnStage recently took a trip to Regent’s Park Open Air Theatre, where the 2026 season has launched with the world premiere of Sherlock Holmes.

In the leafy outdoors, we sat down with principal cast members Joshua James (who takes on the titular role), Jyuddah Jaymes (Watson) and Nadi Kemp-Sayfi (Mary) to find out more about the brand new mystery and the significance of it all unfolding just half a mile from the detective’s fictional home of 221B Baker Street.

Watch all the highlights below:

Written by Joel Horwood, based on the characters by Arthur Conan Doyle and directed by Sean Holmes, the play is set in London in 1890. It follows Sherlock Holmes and Watson as they investigate a case involving a mysterious woman and a stolen jewel, leading them across the city and along the River Thames. The production is presented by agreement with the Conan Doyle Estate.

The cast also features Christopher Akrill as Sholto and Judge, Andre Antonio as Pockets and Referee, Will Brown as Small and Lestrade, Paolo Guidi as Graziano and Bill, Benjamin Harrold as Morstan, Marcia Lecky as Mrs Hudson and Lucia, Mervin Noronha as Tonga and Azad, Yuyu Rau as Lin and Nancy, Theo Reece as Domingo, Rakhee Sharma as Aleksandra and Padshah Begum Jahan, Tamara Tare as ensemble and onstage swing, and Patrick Warner as Mycroft and Thaddeus.

The creative team includes set and co-costume design by Grace Smart, co-costume design and supervision by Lisa Aitken, lighting design by Ryan Day, sound design by Elena Peña, movement direction by Charlotte Broom, and music by Jherek Bischoff. Casting is by Stuart Burt with fight direction from Enric Ortuno, wigs, hair and make-up design by Carole Hancock, voice and dialect coaching by Hazel Holder and Gurkiran Kaur, and intimacy support from Ingrid Mackinnon.

Sherlock Holmes continues until Saturday, 6 June, with tickets on sale below.