Gavin and Stacey’s Mathew Horne and Downton Abbey’s Ed Speleers will star in a stage adaptation of the Oscar-winning film, which famously starred Tom Cruise and Dustin Hoffman.

Mathew Horne wil play Raymond Babbit, famously portrayed by Hoffman, with Speelers takingon the Cruise role of Charlie Babbit.

The heart warming story follows two brothers on a journey of discovery. When self-centered salesman Charlie discovers that his long-lost brother Raymond, an autistic savant, has inherited the family fortune; he sets out to get ‘his half’.

Charlie ‘borrows’ Raymond from the institution where he has spent most of his life and the two brothers embark on a trip across America where Charlie soon discovers that Raymond is worth more than he could have ever imagined.

Horne is best known for playing Gavin in the much-loved, double BAFTA winning comedy series Gavin and Stacey, as well as the BBC series The Catherine Tate Show, and Jack Whitehall’s Bad Education.

His numerous WEst End stage credits include The Miser (Garrick Theatre), The Pride and Entertaining Mr. Sloane (Trafalgar Studios) and Charley’s Aunt (Menier Chocolate Factory).

Speelers will be making his stage debut in Rain Man. His screen credits include TV series Outlander, BBC drama Wolf Hall, ITV series Downton Abbey, House That Jack Built, Disney’s Through The Looking Glass, and the starring role in Twentieth Century Fox feature film Eragon.

The UK tour will open on 21 August 2018 in Windsor and will play dates in Milton Keynes, Cardiff, Eastbourne, Southend, Edinburgh, Cambridge, Brighton, Guildford, Leeds, Richmond, Derby and conclude on 24 November 2018 in Northampton.

Rain Main is directed by Jonathan O’Boyle with design by Morgan Large, lighting by Jack Weir and sound by Dan Samson.

Rain Main is produced by special arrangement with Metro-Goldwyn-Mayer Studios Inc.