Barbara Windsor's husband Scott Mitchell has revealed he feels "nervous" about running this year's London Marathon in support of a dementia charity, but hopes that thinking about Barbara will "get me round when things start to hurt".
Scott will take part in the marathon on April 28 - his 56th birthday - to raise money for Dementia Revolution, a year-long campaign formed by dementia charities Alzheimer's Society and Alzheimer's Research UK.
He'll be joined by some of Windsor's former EastEnders co-stars, including Jake Wood (who plays Max Branning), Adam Woodyatt (Ian Beale), Emma Barton (Honey Mitchell), Kelly Shirley (Carly Wicks), Tanya Franks (Rainie Cross), Jamie Borthwick (Jay Brown), and Natalie Cassidy (Sonia Fowler).
Windsor, 81, has been living with Alzheimer's disease since 2014, but kept her diagnosis private until last year.
After becoming a household name thanks to her appearances in Carry On films, Windsor played the role of barmaid Peggy Mitchell in EastEnders for 22 years before bowing out for good in 2016.
Speaking ahead of the marathon, Scott told Press Association he is "really nervous but also excited" about the event.
"I never thought I'd run a marathon, I'd never run before," Mitchell said. "As the oldest person in the group, I'm surprised at how much I've progressed.
"For me it is more about completing the marathon, no matter what the time, to show my support for Barbara and all the 850,000 other people living with dementia across the country."
He added: "It will be a very special day for me. If I complete this, and I'm praying that I do, it'll be the only time in my life I ever achieve anything like this.
"I'm going to try and enjoy it as much as I can."
Meanwhile, Jake Wood said the last couple of years have been "very tough" for Barbara and Scott.
"It's been very tough, the last couple of years for them, and spending time with them you sort of see the effects of what Barbara's dementia has had, not only on Barbara but also on Scott," he said.
"I just wanted to do something really as a result of seeing what they are going through."