Beloved actor and long-running Play School host John Hamblin has died at age 87.
Mr Hamblin was a fan favourite presenter on the children's television program for almost 30 years.
He is recognised by generations of Australian children and their families as one of its most memorable hosts.
Mr Hamblin began on Playschool in 1970 and appeared in more than 350 episodes of the program.
He was known affectionately as "Naughty John" during his run on the program for his cheeky sense of humour and irreverent nature.
'Comedic timing and wit'
After retiring from the show in 1999, John returned for a special guest appearance as part of Playschool's 50th Anniversary special in 2016.
ABC Director of Entertainment and Specialist Jennifer Collins said his joking manner appealed to a broad audience.
"John was an unforgettable presenter whose comedic timing and wit helped cement Playschool as one of Australia's most cherished children's programs," she said.
"John had a wicked sense of humour and was not afraid of a double entendre.
"His presence always managed to keep both our toddler target audience and their parents equally engaged with the show.
"I would like to extend my condolences to John's family at this sad time."
Mr Hamblin is survived by his children Emma and Myles.
