The 30-year-old actor will make his first appearance in Albert Square next month when builder Greg turns up to work on the reconstruction of the Queen Vic following a dramatic blaze at the pub.
According to reports today, while the role of Greg is currently a guest part, Booth is keen to stick with the soap on a longer-term basis.
Jo Joyner and Stefan Booth as Tanya Branning and Greg
Speaking of his casting, Booth commented: "I'm absolutely delighted to be coming into Albert Square. Even as a kid, whenever I wasn't running around making mischief, we'd all sit in front of the telly watching EastEnders.
"Jo Joyner is a splendid actress to work with and I can't wait to get my teeth into the exciting storylines ahead."
Following his arrival on Albert Square, viewers are likely to see the newcomer clashing with Tanya's ex-husband Max (Jake Wood), who first heard about Greg's involvement in her life earlier this year.
A Walford source told The Mirror: "Max has his fair share of women but he still has a soft spot for Tanya despite all they have been through. Don't be too surprised if he makes mincemeat out of Greg."
Meanwhile, Jo Joyner is making a full-time comeback as Tanya following a period of maternity leave and a stint on three-part BBC series Candy Cabs.