Hawkeye star Fra Fee is to replace Eddie Redmayne as The Emcee and Amy Lennox will take over from Jessie Buckley playing Sally Bowles in Cabaret at the Kit Kat Club in the West End.
Redmayne, 40, and Buckley, 32, have starred in the show since it opened at London's Playhouse Theatre in December last year.
The producers announced the new castings for the production on Tuesday.
