I hate the Katie McGrath as Bellatrix fancast so much as she doesn't even fit. She looks too soft and delicate, doesn't have Bellatrix's prideful, statuesque, disdainful, and aristocratic aura or looks. People only fancast her because her clothes, face, and hairstyle in the last two seasons of Merlin is similar to Bellatrix in the films but I don't think the film hair and clothes are accurate either. She also comes across as too pretentious rather than truly menacing as Bellatrix is but that could just be Morgana or the characters she plays. All in all, I like her but I don't think she is a good actress at all so I am glad it's not real, at least.