Monty Python star and Alzheimer's sufferer Terry Jones united with other dementia patients as he joined the 3,500 people taking part in the London Memory Walk earlier this week.
Terry, 75, who was diagnosed with a rare form of the condition, known as primary progressive aphasia, almost a year ago, is now unable to speak revealed his family but enjoys walking for up to several hours a day.
Long-term friend and fellow Monty Python star Michael Palin recently urged his Facebook followers to sponsor Terry's 5k jaunt, writing, 'Terry is an intrepid walker, and continues to leave me breathless after our walks on Hampstead Heath, so I don’t think he’ll have much trouble'.
The Life of Brian's ex-wife Alison Telfer, who supported Terry across the finish line with their daughter Sally, said: 'Terry can't speak because he is living with a rare form of dementia and it is just so awful because he can't do all the things that he used to do.
'But he still enjoys going out for long hikes and so we took part in our local Memory Walk because we wanted to support him continue to do things he loves and because it was for a cause close to our hearts.
Sally added: 'When he got home, he wanted to go (and went) for his normal post-lunch walk on Hampstead heath for another 1.5 hours.'
Terry's second wife Anna Soderstrom, 33, who he left Alison for after 42 years of marriage, was not at the event.
Monty Python legend and Alzheimer's patient Terry Jones united with other dementia sufferers as he joined the 3,500 people taking part in the London Memory Walk earlier this week
Terry was diagnosed with a rare form of the condition, known as primary progressive aphasia (pictured with daughter Sally) almost a year ago, and has gradually lost his ability to speak
Fellow Monty Python star Michael Palin (far left) urged his Facebook followers to sponsor Terry (far right). The pair have been friends since working on The Life of Brain (pictured) together
Terry Jones is a writer, actor and director best known for being a member of the surreal comedy troupe Monty Python.
Monty Python, which also starred John Cleese and Michael Palin, created the films Holy Grail, The Meaning of Life and Life of Brian.
After splitting in 1974, the group reformed in 2013 for nine performances of the show Monty Python Live (Mostly).
Terry Jones is known for his colourful love life after leaving his wife of 42 years Alison to marry Swedish student Anna Soderstrom, now 33.
The pair share a daughter Siri, seven.
Can only mutter a few words
Terry first showed signs of the disease in 2014 when he required a teleprompter while performing the Monty Python live (mostly) tour.
In September 2015, he was diagnosed with dementia and gradually lost the ability to talk, to the point where he is now only able to mutter a few words at a time.
At last year's Bafta awards where Terry was presented with an accolade for outstanding contribution to television and film, his son Billy gave a speech on behalf of his father, who was only able to tell the audience to 'quieten down'.
A choked-up Billy said: 'The struggles we're having at the moment, it's a bit hard.'
Sally added: 'For someone who lived by words and