He acted in Michael Bradley-Dyne's play, "The Right Honourable Gentleman," at Her Majesty's Theatre in London, England with Anthony Quayle (played Charles Dilke), Coral Browne (played Mrs. Rossiter), Anna Massey, Jack Gwillim (played Joseph Chamberlain), Richard Leech, Mary Law, Jill Melford, Anne Stevenson, Corin Redgrave, Terence Bayler, Gillian Lind, and John Irvine in the cast. Glen Byam Shaw was director. Motley was designer.
Served as General Secretary of Equity, the actors' union (1940 - 1946); Secretary Federation of Theatre Unions 1944-46; Governor, Old Vic 1945-47; Drama Director, Arts Council of Great Britain 1947-49; Chairman of the Executive Committee of the International Theatre Institute (1948 - 1951); Administrator, Old Vic 1949-51; Administrator, Arts Theatre 1951-52.[2].