Mrs Brown creator Brendan O'Carroll has led tributes to tragic pensioner Peggy Mangan.
Mr O'Carroll, who is currently filmiing the Mrs Brown movies in Dublin, took time out from their schedule to help in the search for Mrs Mangan (65).
The body of the much-loved pensioner was found in a field close to Ikea in Ballymun, North Dublin, on Saturday afternoon.
Mrs Managan, who suffered from Alzheimers, was last seen on Tuesday of last week when she took her dog Casper for a walk from her home in Terenure.
The alarm was raised shortly afterwards and a massive search for the popular pensioner took place throughout last week.
It is now believed that Mrs Mangan died from natural causes on the day she went missing.
The Mrs Brown film crew and stars saw met the pensioner on the day she went missing.
Paying tribute to Peggy, Brendan O'Carroll said he and his family, as well as the extended 'Mrs Brown' family, were "distraught at the news that Peggy had died".
"Peggy spoke to a few of the cast and the crew and in fact after hearing us sing happy birthday to Fiona Gibney, who plays Sharon the barmaid in the series, she went to her and gave her a hug and a kiss and said: 'I didn't know it was your birthday, happy birthday'.
"Peggy was obviously a kind and much-loved woman. Her family are in our thoughts and hearts," he added.
A garda source revealed that a post-mortem showed that Mrs Mangan died from natural causes on Tuesday – several hours after she was last seen alive.
"We believe that Mrs Mangan passed away sometime after she was last spotted in the Finglas area around 8pm on Tuesday night. This is a very tragic case," a spokesman said.
Mrs Mangan was reported missing by her family earlier that morning when she failed to return to her home in Terenure, south Dublin.
The 10-year-old King Charles spaniel was standing guard by his owner's side when the body was discovered.
The loyal pet died shortly after Mrs Mangan's body was removed from the area.
He had been treated for hunger and dehydration at a local vet but it was too late.
A family friend said: "All of Peggy's family were overwhelmed by the help they got from the public, be it people who searched, people who provided information, people who made sandwiches or people who shared information and spread the message that Peggy and Casper were missing.
"People were out for five days on their feet with little rest, and we hoped that Peggy would be found safe, but sadly it wasn't the case.
"The family still can't believe all the help they got, and feel that Peggy may have passed away on the first night she was missing.
"They certainly hope that she wasn't sitting alone for days, and are also very upset about Peggy's loyal companion Casper."
Peggy went missing on Tuesday and it quickly became apparent she had walked from Terenure to Glasnevin that day.
She had been spotted chatting with the crew filming Brendan O'Carroll's 'Mrs Brown's Boys' movie and had also been seen on CCTV in the Finglas area.
More than 150 volunteers joined in searches, but she was found in undergrowth near the IKEA store in Ballymun at around 4pm on Saturday.
Civil Defence and mountain rescue teams had joined gardai in a major search operation in Finglas and Glasnevin.
By Paul Williams and Conor Feehan