Welsh actor Owen Teale will join Sir Ian McKellen and Sir Patrick Stewart in the revival of Harold Pinter's No Man's Land.
Owen, recently seen on screen in the hit TV series Game Of Thrones, will play the character of Briggs in the production.
The play sees two ageing writers, Hirst (Sir Patrick) and Spooner (Sir Ian), meet at a pub in London's Hampstead.
They drink late into the night, moving to Hirst's stately home nearby. As the two become increasingly inebriated, their stories become less believable as their conversation turns into a power game.
No Man's Land will tour the UK before opening in the West End at Wyndham's Theatre.
Wyndham's is where it was performed from 1975 to 1976, when it starred Ralph Richardson and John Gielgud - and is also the theatre where Sir Patrick first saw the play.
Starting in August, the tour will include the Lyceum Theatre in Sheffield, the Theatre Royal in Newcastle, the Theatre Royal in Brighton and the New Theatre in Cardiff.
Sir Ian and Sir Patrick have already starred in No Man's Land, directed by Sean Mathias, on Broadway at New York's Cort Theatre in 2013.
Owen, 54, previously starred alongside Sir Ian in Dance Of Death, and his theatre accolades include the 1997 Tony Award for best actor for his role in A Doll's House.
He has also appeared in various Shakespearean adaptations including Julius Caesar, King Lear and Henry IV.
His Game Of Thrones character Alliser Thorne was responsible for reportedly killing one of the show's most popular characters, Jon Snow, at the end of the last series.
Viewers were outraged as Alliser plunged a knife into Jon's chest, whispering "for the Watch".
His additional TV credits include a role in HBO show Conspiracy, ITV's Torchwood and The Cherry Orchard opposite Charlotte Rampling.