Well, Suriya might be the heartthrob of Kollywood today but he was always the Athreya for his younger brother Karthi. In many interviews, Karthy has sharing interesting experiences about how his elder brother would bully him during their childhood days. And, it was this experiences that Suriya used to play the evil Athreya in his upcoming sci-fi thriller 24. "It was a challenging role since I've never played an evil-guy role before. So, I simply went back to my childhood when I used to bully my brother Karthi. I enjoyed making him cry; I like the sense of overpowering someone. So, I just had to dip into those memories to get into the skin of this character," Suriya said in an interview to a leading daily.