Actors have nightmares of going on in a play for which they haven’t been given a script. But some of Britain’s best-known performers – including Sir Ian McKellen, Dame Emma Thompson, Harry Hill and Sanjeev Bhaskar – have volunteered to endure that sweaty scenario for one night at a north London theatre.
Shortly before the play begins, that night’s surprise guest star will be taken backstage at the Park theatre and offered a choice of coats, hats, moustaches and wigs, then fitted with an earpiece to be fed the lines of a detective investigating a crime.
