Original EastEnder Sharon Watts is to make a return to Albert Square after an absence of six years.
Actress Letitia Dean, 44, will head back to Walford later this year – her third major stint on the series.
The last time viewers saw her was in early 2006 after she had been left a widow following the death of husband Dennis Rickman.
Letitia said: "I am really looking forward to being part of the EastEnders team again, as it has always been very close to my heart.
"I cannot wait to work with my old colleagues and see what is in store for Sharon."
Former Queen Vic landlady Sharon has been one of the show's key characters.
Her affair with brother-in-law Phil Mitchell (Steve McFadden) led to one of the show's highest rating episodes.
Sharon returned in 2001, to take over at the Vic, which had formerly been run by her adoptive parents, Angie and Den Watts.
She stayed until 2004 and then returned again the following year.
In January 2006, she bowed out once again following the stabbing of Dennis who died in her arms.