During the Second World War, Shirley Anne Field, who starred alongside Michael Caine in the 1960s classic Alfie, was sent to the safety of one of NCH's children's homes, where she spent most of her childhood.
Field maintained close links with NCH and became its vice-president in 1994. She recorded a radio fundraising appeal for the charity that was broadcast on Radio 4 at the start of this month.
In the appeal, she said: "NCH is close to my heart as it helped me as a child. It gives me great pleasure to be able to help support NCH in any way I can so it can continue its tremendous work with young people."
The charity describes Field as one its most committed supporters. A spokeswoman for NCH said: "She is a fantastic ambassador for NCH and has visited many of our projects over the years. Most recently she visited our Warren Park Children's Centre in Kingston-Upon-Thames for children with severe disabilities. She is also an eloquent speaker and has spoken at many of our ladies lunches."