Former child acting star Mark Lester said in a British newspaper yesterday that he donated sperm to Michael Jackson and believes he could be the biological father of the late singer's daughter Paris.

Mr Lester who played Oliver Twist in the 1968 film musical Oliver! and Ziggy in Eyewitness, that was shot in Malta in 1970, told the News of the World he was willing to take a paternity test to establish whether or not he is 11-year-old Paris' father.

The 51-year-old Briton became friends with Michael Jackson and is godfather to Paris, and Jackson's two other children, Prince Michael, 12, and seven-year-old Prince Michael II, known as Blanket.

"It's a been a secret for so long," Mr Lester told the weekly tabloid.

"It was a gift to him, no money was paid, it was something I was honoured to do. He wanted children so badly."

Mr Lester added: "I do feel a definite bonding with Paris and I think there's a definite possibility that she's part of me.

"I want to have contact with her, Prince and Blanket regardless of whether any or all of them are mine. I think it's cruel that I've now been excluded from them."

He said that since Jackson's mother Katherine had been granted custody of the children following the singer's death, all his phone calls and emails had gone unanswered.

Mr Lester, who has four children himself, said there was a strong resemblance between his 15-year-old daughter Harriet and Paris.

He told the News of the World that Jackson first confided in him in 1996 that he was desperate to be a father. Both were then aged 37 and Mr Lester already had three children.

The donation was arranged through a clinic in Harley Street, London, in February 1996.

Eight months later Jackson announced he had married nurse Debbie Rowe and three months later the couple revealed the birth of their first child, Prince.

Paris was born just over a year later, in April 1998.

Mr Lester said he felt compelled to speak out because he feared being excluded from the lives of Jackson's children.

"This isn't what Michael would have wanted," he said. I feel I have to come forward, as my only way of saying, 'Please don't shut me out!'."