Hildegard Knef (Trilby O'Farrall), Donald Wolfit (Svengali), Terence Morgan (Billy Bagot), Derek Bond (Laird), Paul Rogers (Taffy), David Kossoff (Gecko), Hubert Gregg (Durian), Noel Purcell (Patrick O'Ferrall), Alfie Bass (Carrell), Harry Secombe (Barizel), Peter Illing (Police Inspector), Joan Haythorne (Mrs. Bagot), Hugh Cross (Dubose), David Oxley (Dodor), Richard Pearson (Lambert), Rica Fox (Dresser), Toots Pound (Mama Morton), Michael Craig (Zouzou), Neville Phillips (Contran), Arnold Bell (Tout), Joan Heal (Barmaid), Martin Boddey (Doctor), Cyril Smith (1st Stage Manager), Marne Maitland (2nd Stage Manager), Elisabeth Schwarzkopf (Trilby O'Farrall)