Toby Whithouse, the creator of Being Human, talks to SFX (interview) about how losing Aidan Turner (Mitchell) is the least of the shows problems. The Vampire John Mitchell, who was one of the main characters in the supernatural drama, was killed off at the end of season 3. The creator wrote in the surprise ending of the character (Mitchell) due to the actor moving on to film The Hobbit (2012).
Whithouse explains to SFX: “Losing Mitchell is the least of our problems, to be honest! I think that you just attack the new stories and the new characters with a lot of confidence.”
He goes on to say that even after the death of Mitchell he had “to be very dogmatic about the fact that Mitchell is gone. The Mitchell character is dead and he’s not coming back. I felt that unless we made it absolutely clear that Mitchell wasn’t coming back people were always going to be expecting him to come back… and therefore not keeping their eye on the stories that we’re telling now.”
“Much as we loved and adored and respected Aidan, there comes a point where you just forget he was in it, because actually what you’re seeing on screen in series four is so fantastic.”
The Werewolf George Sands, will be written out of the show in season 4, after Russell Tovey decided to leave in November. Sinead Keenan (Nina) also decided to leave the show recently. :*(