From an early age "I became obsessed with the theatre" Carsen states and he wanted to become an actor. At Upper Canada College he tells that "was in all the plays and musicals I could get into. In those days, because it was a boys’ school, the boys played both male and female roles. So I played Katisha in The Mikado, and Archibald Grosvenor when we did Patience." Studying theatre at
York University in Toronto followed, but by the time he was 20, he abandoned his theatre studies and moved to England to continue studying acting. ==Career beginnings==