Former ER actress Alex Kingston has vowed never to work on a hospital drama again, because she is afraid of being typecasted as a doctor. The British star is currently playing NURSE RATCHET in a London stage production of One Flew Over the Cuckoo's Nest, and she insists it is her last ever medical role. Kingston says, "Having played a doctor in ER and a nurse in this show, I think I need to move away from the medical profession. "I feel like I know too much already - which is quite dangerous, especially when people ask me for a diagnosis."