Emmerdale fans are convinced Cain has already rumbled his 'brother' Caleb's secret.
Caleb Dingle - played by Will Ash - showed up in the village on Christmas Day, fuming at his brother Cain Dingle for not telling him about their mother Faith's recent death. Caleb believed Faith had died years ago, which is what Cain had told him.
However, fans have been suspicious of Caleb's true identity or what he might be hiding, as they're convinced all is not what it seems with him. Bosses of the ITV soap have confirmed he has something to hide - but say he's not an undercover cop.
