Complex sentence: Ian McCulloch (born 18 November 1939) is a Scottish actor and screenwriter best known for his role as Greg Preston in the post-apocalyptic TV series "Survivors" (1975-77).
Split into simpler sentences: Ian McCulloch (born 18 November 1939) is a Scottish actor and screenwriter. McCulloch is best known for his role as Greg Preston in the post-apocalyptic TV series "Survivors" (1975-77).