Ken Caswell was born in Monmouthshire, South Wales, and trained in drama with the Monmouthshire Young People’s Theatre and later at the Rose Bruford College.

Ken began his theatrical career as an actor and singer playing literally hundreds of different roles in repertory theatre and London's West End in works ranging from early operas to Shakespeare, Gilbert and Sullivan, and Andrew Lloyd Webber.

After originating the role of The Bishop in the original cast of the Royal Shakespeare Company's production of Les Miserables at the Barbican, Ken was created the shows Resident Director, and as an associate director for Cameron Mackintosh Ltd has subsequently directed sixteen productions of Les Miserables worldwide. He recently won an Heraldo Award in recognition of his work on the Mexican production.

Since 1986 Ken has directed plays and musicals all over the World, including critically acclaimed productions of Sweeney Todd, Fiddler on the Roof, Oliver and La Traviata.

Ken Caswell currently resides in South Wales from where he directs and teaches.