In a new interview with the Radio Times, Christopher Eccleston reveals why left the titular role in the TV reboot of 'Doctor Who' after just one season back in 2005. The actor explains, "My relationship with my three immediate superiors – the showrunner, the producer, and co-producer – broke down irreparably during the first block of filming and it never recovered. They lost trust in me, and I lost faith and trust and belief in them.