Complex sentence: Beverley Cressman is a British actress, best known for playing Kate Lethbridge-Stewart in two unofficial direct-to-video Doctor Who spin-offs, "Downtime" (1995), and "Dæmos Rising" (2004).
Split into simpler sentences: Beverley Cressman is a British actress, best known for being the actress cast as Kate Lethbridge-Stewart. She starred in two unofficial direct-to-video Doctor Who spin-offs, "Downtime" (1995), and "Dæmos Rising" (2004).