Eddie arrives on Albert Square next Monday and receives a warm welcome from his nephew Alfie (Shane Richie), but Michael is not pleased to see his father and makes it clear that he wants him to leave.
When Essex's casting in EastEnders was announced earlier this year, show bosses promised that the fractured relationship between Eddie and Michael (Steve John Shepherd) would be fully explored on screen.
Speaking of the pair's troubles, Essex commented: "Eddie is a strong character. He's an ex-boxer, he has a chequered past, which will unfold. He's not a bad guy, but there's a massive rift between Eddie and his son Michael. We see Eddie for the first time in a café, where he spots the name of his nephew Alfie in a newspaper and decides to go to see him.
"When he arrives, he has no idea that Michael is around! Eddie and Michael haven't really spoken for years, but as a father does, Eddie reaches out and reaches out, trying to mend that."
"I've been working with Steve a lot and I've actually just done a scene with him that was very powerful," he continued. "They're very dramatic, the scenes between Michael and Eddie."
Essex added that it could be possible for Eddie to fix the problems with his son if he perseveres.
He said: "Well, Eddie is reaching out and reaching out and he may eventually make some inroads, but Michael is the type of character who broods and has a lot on his mind, so we'll have to wait and see."
> Read David Essex's full interview about his new role in EastEnders
> Read our full spoilers for Eddie's first week in Walford
Watch a preview of Eddie's arrival on Albert Square in the video below: