Thunderbirds co-creator Sylvia Anderson, best known for voicing Lady Penelope in the hit TV show, has died aged 88.
A producer and writer, Ms Anderson created the Supermarionation puppet series with husband Gerry.
She died at her home in Bray, Buckinghamshire, following a short illness, her daughter Dee Anderson confirmed.
"Sylvia was a mother and a legend - her intelligence was phenomenal but her creativity and tenacity unchallenged," her daughter said.
"She was a force in every way, and will be sadly missed."
Gerry Anderson died in 2012 aged 83 after suffering with Alzheimer's disease.
As well as voicing Lady Penelope Creighton-Ward in Thunderbirds from its debut in 1965 until 1968, Sylvia also worked on Joe 90, Captain Scarlet and Stingray.