Complex sentence: The film starred John Breslin, Janet Butler, John Charlesworth, Maurice Colbourne, and Laurence Payne as Troilus, and featured Peter Cushing as Mardian Thersites.
Split into simpler sentences: The film starred Laurence Payne as Troilus, along with John Breslin, Janet Butler, John Charlesworth, Maurice Colbourne. The cast additionally featured Peter Cushing as Mardian Thersites.