Fans have been furiously speculating over the identity of newcomer Leo and now EastEnders has confirmed he is Leo King - the son of Tony King.
Long-time Easties viewers will remember Tony King was the boyfriend of Bianca Jackson, and he groomed and abused her stepdaughter Whitney Dean.
Although Whitney believed they were in a relationship and in love, it was clear to Bianca that Tony was a paedophile.
Tony was arrested and sent to prison for his crimes, and three years after he was convicted he took his own life in his prison cell.
And now his son, Leo, is in town to avenge his father's death.
He has been loitering around Albert Square over the last week, prompting fan speculation over his identity, with some believing he was Danny Butcher.
Bianca's return sparks a gripping new story with the arrival of Leo King.
When Leo was first seen at Callum and Whitney's doomed wedding talking to Tiffany it was obvious Bianca recognised him as she quickly ushered Tiffany away.
Since then, Leo has turned up in Walford and to prove he knows where Bianca's family lives and rile her up.
Overseeing him chatting to her daughter again, a furious Bianca confronted Leo and during an intense stand-off she warned him to stay away.
Bianca was unaware that Tony even had a son until he sought her out a while ago and it became clear the pair have had a previous run-in, as he goaded her about attacking him and her recent spell in prison.
He might seem charming, but Bianca knows Leo is convinced Tony was innocent and is desperate to clear his father's name.
Leo also knows his grandparents gave Bianca money after everything that happened with Tony and is on a mission to get back what he thinks is rightfully his.
Read more: EastEnders schedule changes again
Bianca threatened Leo to leave Albert Square, but it doesn't look like Leo will heed her warning...
Are Bianca's family in danger?
Show boss Kate Oates has confirmed there are big things coming up for Whitney - and her failed wedding was just the start.
Tom Wells has taken on the role of Leo having previously starred in Doctors and Bancroft.
Speaking about his new role, Tom said: "I'm really excited to be joining the EastEnders team and seeing what's in store for Leo.
"He's definitely a man not to be trusted and I can't wait to see him settle into Walford, it's going to be fun."
Jon Sen, Executive Producer of EastEnders added: "Bianca's return sparks a gripping new story with the arrival of Leo King – a dark and misguided figure who has grown up with the stigma of being the son of a convicted paedophile.
"We are thrilled to welcome Tom to the Square, knowing he will bring depth and complexity to the role of Leo, a man who believes his father has been wronged and who will also go to great lengths to prove it."
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