It’s been less than two years since Rwandan-Scottish actor Ncuti Gatwa was confirmed as the 15th Doctor Who - but rumours are rife that he’s set to quit the role.
His second season as the Doctor is set to come to a conclusion later this year, with no third season yet confirmed by Disney and the BBC, who co-own the frachaise.
Speculation has been growing as to who might take over the TARDIS in one of the biggest roles in British television.
Here are the 13 favourites, according to betideas.com.

13. Damson Idris
It's going to be a big year for Damson Idris - who is starring in hotly-tipped action film 'F1'. He made his name in crime drama 'Snowfall', which ran for six seasons. He's priced at 20/1. | Getty Images for Academy Museum