After three years in the leading role as Dr. Who, Peter Capaldi is due to hand over the honourable title following his retirement later this year, but who will be the next chosen Timelord?

Since Peter announced his departure earlier in January, rumours have been circulating that a number of stars could be set to replace the Doctor in the British science-fiction television series.

Oscar award-winning Tilda Swinton is a firm favourite at the bookmakers to take over from Capaldi. If this became a reality, it would make her the first female Doctor and with odds at Paddy Power and Coral of 4/1 for the Hollywood star and 5/4 at Ladbrokes, it's not looking unlikely!

Paul McGann, who played the eighth Doctor in 1996 has shown a particular likeness for Tilda saying:

“I’d pick Tilda because she’s a great character. She’s got that kind of David Bowie thing’.

Bookkeepers fancy Broadchurch actress Olivia Colman’s chances of becoming the first female Doctor too, with odds of 10/1 at Ladbrokes and Betfair, 9/1 at Paddy Power, and 8/1 at Coral.

Chris Chibnall-Broadchurch creator, expressed his belief that the next Doctor in the popular long-running show, could indeed be female.

“I think the next time might be a female Doctor. I don’t see why not,’ he said.

Mr Chibnall is also set to take over from Steven Moffat as the executive producer for Doctor Who, which could help Olivia’s chances considerably in becoming pick of the bunch.

Former Broadchurch co-star David Tennent who also starred as the tenth Dr. Who, claims Olivia would “be a magnificent choice”.

However, overtaking the ladies in the betting stakes is My Family actor Kris Marshall, who coincidentally quit his role on Death in Paradise around the same time Capaldi stepped down from his role and has since become a strong potential candidate to fill our retiring Timelords shoes.

With Ladbrokes suspending bets on Kris Marshall earlier in March, they're now back in the game with odds of 1/1 at Coral, 6/5 at Paddy Power and 6/4 at Betfair.

Or perhaps you prefer to try your luck on some rather interesting contenders-James Corden or Stephen Fry, with odds set at 25/1 by Paddy Power for James and 80/1 for Stephen.

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It’s impossible to predict who will transpire to be the 13th Doctor, (not that that will stop us trying of course!) but whatever happens, we’ll be watching.