EastEnders ' mysterious newcomer Zack Hudson has been pictured on the soap for the first time as he makes his bombshell arrival on Albert Square.
Zack, played by James Fararr, is described as an unpredictable troublemaker who lives life in the fast lane.
A lone wolf, Zack had a difficult childhood that has left him determined to never rely on anyone or become too attached.
Forever the ladies’ man, Zack is sure to ruffle a few feathers when he arrives in Walford – will he finally find the home he’s always needed, or will trouble follow him to Albert Square?
Zack can be seen looking dapper in a sharp suit at Sharon Watt's father's funeral, complete with sunglasses and a bad boy demeanour.
Fans are already creating wild theories as to Zack's true identity, with many believing he is actually the secret brother of Sharon (Letitia Dean).
They think he is the son of Sharon's biological father, Gavin Sullivan.
One tweeted: “I wonder if this new Zack character announced the other day could be related - perhaps it’s Gavin’s son? Would give Sharon a sibling…”
Another wrote: "My thought on him was could he be Dennis Rickmans son or a brother of him, but Gavin’s son could be a good call."
"I really hope this is Sharon’s brother # EastEnders ," added a third.
On his arrival to Albert Square, James said: “I’m thrilled to be joining EastEnders.
'As a born and bred Londoner myself, I can’t wait to bring my experience of a place I love and know to such a well-respected long running show, with such iconic characters.
"Zack certainly has a very complicated past and there is a real depth to him that I can’t wait to explore."
Jon Sen, Executive Producer of EastEnders added: "James is a wonderful addition to the EastEnders cast, playing the charming rogue Zack Hudson.
"We are all excited to see James bring the character to life and there’s plenty of drama in store for him - trouble is always just round the corner…"
* EastEnders airs Mondays and Fridays at 8.05pm, and Tuesdays and Thursdays at 7:35pm on BBC One