Next week, EastEnders will introduce a new character, Sheila Atkins, played by veteran actress Sheila Ruskin, known for her role in Doctor Who. The storyline centers around Denise Fox's recent diagnosis of Acute Myeloid Leukaemia (AML), leaving her family in turmoil. Denise, portrayed by Diane Parish, is hesitant to begin treatment, causing concern for her husband Jack Branning (Scott Maslen) and their family. As they gather to celebrate Kim Fox's engagement, Denise reveals her diagnosis, shocking her loved ones. Meanwhile, her daughters, Chelsea and Libby Fox, navigate their own tensions while trying to support their mother. Chelsea, who shares a son with imprisoned Gray Atkins, seeks financial help from Sheila, who offers assistance but later withdraws it, complicating matters further. Sheila Ruskin, 80, has a rich acting history, having appeared in various notable series, including EastEnders and Doctor Who, and her character's arrival is set to deepen the ongoing family drama.