It was announced earlier this year that the actress would reprise her role as Sharon Watts, after previously playing the fan favourite from 1985 to 1995 and 2001 to 2006.
> EastEnders: Letitia Dean to reprise role as Sharon Watts
Sharon re-appears in Albert Square on August 13, when she turns up on old flame Phil Mitchell's (Steve McFadden) doorstep wearing a wedding dress after jilting her fiancé at the altar.
Dean said that she felt at home on the set as soon as she put on one of Sharon's famous outfits, despite suffering from initial nerves.
"Going back to the Square on my first day I literally almost cacked myself. It was like, 'Oh God'. I felt like a newbie going back," she told The Sun.
"Sharon's style hasn't changed much. The skirts have got longer, the hair is slightly bigger but there is still that '80s theme. Shoulder pads, eyelashes, a bit of sugar-plum lustre - and she's back! Soon it was like I hadn't been away.
"Sharon's a mess and so confused. She never got over her grief since her husband Dennis died and she knocks on Phil's door and says, 'Help me'."
Sharon's presence causes problems between Phil and Shirley (Linda Henry). She also seduces Jack Branning (Scott Maslen).
Dean added that she would like to be reunited with on-screen ex-husband Grant Mitchell, saying: "I love Ross [Kemp]. I'd love him to come back. It would be fantastic. It would be great. Can you imagine? Sharongate was one of my fave storylines."
She concluded by commenting that she would love to become a soap matriarch like her friend and former co-star Wendy Richard, who passed away in 2009.
"When you've been in the show a long time and then you come back, it's good to have a bit of longevity," she said.
Watch a trailer for Sharon's return below: