Ambassadors Theatre opened on 5 June 1913 and was designed by W.G.R. Sprague, who also designed the St Martin’s Theatre located next door. The first production at the theatre was of Panthea, a play by Monckton Hoffe, which ran for only 15 nights. Britain’s longest running production, The Mousetrap by Agatha Christie, opened at The Ambassadors on 25 November 1952 and played there until its 21st Anniversary.
In 1996 the theatre was transformed into two studio spaces to accommodate the Royal Court Theatre Upstairs, who were residents for three years. After their successful residence, the theatre was converted back to its original design and renamed The New Ambassadors Theatre but reverted to its previous name in 2007, when it became home to the world-famous production of Stomp for 11 years.
After having sold it in 2007, in 2019 after 15 years of the theatre being privately owned, Ambassador Theatre Group (ATG) bought the venue back. Since then, productions have included Songs for Nobodies, The Twilight Zone, The Secret Diary of Adrian Mole Aged 13 ¾ – The Musical, Ghost Stories and Kunene and the King, before the West End closed due to the Covid pandemic in March 2020.
The venue was closed for 572 days, which was the longest time the theatre has been unoccupied since it opened in 1913. Audiences were welcomed back with The Shark is Broken, and the revival of Mike Bartlett’s Cock, and now, the new dark comedy Mad House has followed.
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