Complex sentence: Simon Dormandy is an English actor and director, who as an actor has worked primarily with the Royal Shakespeare Company (RSC), perhaps best known on screen for his performances in Vanity Fair and Castaway.
Split into simpler sentences: Simon Dormandy is an English actor and director, who as an actor has worked primarily with the Royal Shakespeare Company (RSC). He is perhaps best known on screen for his performances in Vanity Fair and Castaway.