The 27-year-old actress thinks teenagers can be 'evil geniuses' and says she was singled out for being quiet and awkward when she was younger, reported Contactmusic.
"I was really shy at school. I was like an 'Inbetweener' but a female one. Teenage girls are just the most evil geniuses. If a teenage girl sets against you, your life is over. And that happened to me a lot," Berrington said.