Ross Barton, played by actor Michael Parr, is a new regular character for the ITV soap and had a big role to play in tonight's double bill (October 24).
Viewers saw Ross burst into Butler's Farm looking for Cain Dingle (Jeff Hordley), having been shot while carrying out a dodgy job that Cain had originally intended to take on himself.
Cain's partner Moira Barton (Natalie J Robb) failed to recognise the injured intruder, but later realised that he is her nephew.
In a further twist, Ross has already made previous appearances on Emmerdale as he was the carjacker who targeted Laurel Thomas in the summer, sending her over the edge.
With Ross staying at Butler's until he recovers, Cain is now feeling unsettled by his presence - knowing that he is trouble.
Speaking to Digital Spy today, Parr commented: "I am thrilled to be playing a regular character in Emmerdale. It was always the plan that Laurel's carjacker would be revealed as Moira's nephew - Ross Barton.
"It has been fun keeping his identity and my role a secret. Although I did nearly burst from wanting to tell people. Ross is a great character and there is lots to come for him in future episodes."
Digital Spy has been aware of the Ross Barton twist for some time, but kept his arrival a secret to provide an element of surprise for viewers.
Friday's Emmerdale episode will feature the first appearance of former Coronation Street star Bill Ward as James Barton - Ross's father and the brother of Moira's late husband John.
James also has two other sons who will be joining the village.
In the meantime, next week's episodes will see Laurel freak out when she realises that the carjacker is staying at Butler's.
Emmerdale airs weeknights at 7pm on ITV, with an extra episode at 8pm on Thursdays.
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