He joined the Royal Shakespeare Company in 1963 and appeared in Stratford and at the Aldwych, London. He remained until 1966, during which time he played a wide variety of roles, including Octavius Caesar in Julius Caesar, Clarence in The Wars of The Roses, Launcelot Gobbo in The Merchant of Venice, Antipholus of Ephesus in The Comedy of Errors, Osric in the David Warner Hamlet, Dobchinsky in The Government Inspector and Moloch in Robert Bolt's The Thwarting of Baron Bolligrew. He then joined the National Theatre where he played Celia in the all-male production of As You Like It (1967) and appeared in Peter Nichols's The National Health (1969).