Charlize Theron happy to play evil characters

London: Oscar-winning actress actress Charlize Theron believes she gets asked to play evil characters because she is going through a grey phase of her personality. The 36-year-old actress stars as the wicked stepmother Queen Ravenna in the forthcoming movie ‘Snow White and the Huntsman’ and she says her current run of portraying evil alter-egos is down to the current period in her life, reported Hello magazine. "I am a bitch! No, someone was saying to me, `You have been playing a lot of evil and bitchy characters,` and we came to the conclusion that Picasso had his blue period and that this is my bitch period," Theron said. The actress also said that it was a a lot of fun to scream at people all day while portraying the queen. "It was amazing that we got to do this. I got to play all day. I got to put a crown on my head and scream at people - that was a lot of fun," she added. PTI