Thomas King is said to be making an "explosive return" to Emmerdale in the coming weeks.
He was just a young man when he was last seen on the ITV soap, but with a villainous father like Carl, could Thomas come back with a concerning motive - amid fan speculation he could be linked to Caleb Milligan.
Thomas was first seen in the village in 2004 amid a huge custody battle between his parents - Carl and Colleen - as they made a decision to divorce. The kids temporarily stayed in the village in 2010 when Colleen called on the village and left the kids with him.
When Carl and Chas decided to get married, their wedding day descended into chaos as Chas turned her back on Carl and revealed all about his affair with Eve Jenson. No doubt fuming by the revelation, Carl headed for Saudi Arabia.
Thomas and Anya returned to the village in 2012, following the murder of their father. Chas was believed to be Carl's killer and when Thomas quizzed Chas' brother Cain about what happened, he said how Carl had been attempting to rape Chas when she killed him.
The revelation left Thomas devastated as he cut the memories of his father from his mind.
At the funeral, Thomas told everyone about what Carl did to Chas and he ran away, determined not to join the mourners grieving the death of his father. He was later visited by Cameron Murray, who was Carl's real killer.
Thomas made his return to the village in 2013, where he was stalking Chas and threatening her with chilling messages and actions in a bid to get revenge for his father's death. Despite her trying to apologise, Thomas refused to accept it.
After causing much trouble in the village, including befriending Belle Dingle and Gemma Andrews, Thomas soon embarked on a romance with Belle after the pair shared a kiss, with them keeping it a secret at first.
When the parents eventually found out, they banned each other from seeing one another. In his final scenes, Thomas is ordered to return to Saudi Arabi. Whilst Nicola and Jimmy told him to stay at first, after a visit to Belle, the guilt ramps up for him and he decided he must leave. Stealing the camper van, he headed to the airport and flew back to Saudi Arabia to be with his mum again.