David Tennant has admitted he is worried that his Broadchurch character may be killed off during the second series.

The actor starred as DI Alec Hardy in the ITV murder mystery, but told Metro he had no idea whether writer Chris Chibnall planned to keep him as a lead in the upcoming second series.

He said: “We don’t know where the characters are going. We don’t know the story he is telling. Some people say they are in it, I’m not sure that they do [know] though.

“I was dying of a heart attack, so I don’t know how able Alec Hardy will be to do any more crimefighting, we will have to see.”

David’s character was shown in poor health and failing police medicals at the end of the series, with the final episode suggesting that he would leave the force.

The former Doctor Who is set to star in the US remake of Broadchurch – Gracepoint – which will be filming from January and also features Breaking Bad’s Anna Gunn, Silver Linings Playbook’s Jacki Weaver, Nick Nolte, Michael Pena and Kevin Zegers.

Olivia Colman, who played his fellow detective in Broadchurch, has been confirmed for the second UK series, but no other castings have been announced yet.

Chris Chibnall has promised that the new run will be ‘completely different’.