Previews for the production began Jan. 22, and performances are currently scheduled to run through April 11.

Sloane features Imelda Staunton, Matthew Horne, Simon Paisley Day and Richard Bremner. In the play, Sloane (Horne), a handsome and amoral young man charms his way into the household of the middle-aged and emotionally desperate, Kath (Staunton) and her prurient brother Ed (Day). The sibling pair compete for the affections of their new lodger in a game of sexual tug-of-war, which leads to dark secrets, blackmail and murder. The play premiered in 1964, and is recognized as the most autobiographical of Orton's plays.

Staunton was last seen on the London stage in Frank McGuinness' There Came a Gypsy Riding, which premiered at the Almeida in January 2007. Other London stage appearances have earned her two Olivier Awards, first for her roles in A Chorus of Disapproval (at the National) and The Corn in Green (at the Old Vic) in 1985, and as Miss Adelaide in the National's 1996 revival of its production of Guys and Dolls.

Horne's television credits include the award-winning BBC TV comedy series "Gavin and Stacey," "The Catherine Tate Show" and "Roman's Empire." His film credits include "Lesbian Vampire Killers," to be released in March 2009. His new sketch show "Horne and Corden" is co-written with co-star James Corden and directed by Kathy Burke. It will be broadcast on BBC this year.

Day has been seen in Timon of Athens (Globe), The Ugly One (Royal Court), The 39 Steps (Tricycle/West End) and The Philanthropist (Donmar Warehouse). His television credits include "Midsomer Murders," "Dr. Who," "The Catherine Tate Show" and "The Belsen Redemption." Bremmer was most recently seen in How to Disappear Completely and Never be Found (Sheffield and Southwark Playhouse), Nicholas Nickleby (Chichester Festival Theatre), Bent (New Ambassadors Theatre) and Great Expectations (RSC). His television credits include "Kingdom," "Miss Marple," "Crusoe" and "Coronation Street."

The production is directed by Nick Bagnal, designed by Peter McKintosh and Colin Richmond, and is a co-production between Michael Edwards and Carole Winter and English Touring Theatre. Kathy Burke is credited as creative consultant.

To book tickets contact the box office at 0870 060 6632 or visit www.theambassadors.com/trafalgarstudios.