ACTOR Eric Cullen died of a heart attack, it was revealed yesterday.

It was discovered that his heart arteries had been clogged by cholesterol and the stress of an operation for a blockage of the small bowel triggered the attack.

The actor, who played Wee Burney in BBC Scotland's television series Rab C Nesbitt, died in Hairmyres Hospital, East Kilbride, last Thursday. His death certificate gives both the heart condition - coronary artery atheroma - and the stress of the operation as the causes of death.

Friends revealed that Cullen, 31, had been born with a high level of cholesterol. Last night, a leading Scottish doctor added: ``Sadly, it is more likely that a person who dies from coronary artery atheroma in their early 30s has had an inherent problem with high cholesterol. Only a person in their 50s could have eaten themselves into such ill health.

``The stress of the operation and the effects of the small-bowel blockage would have brought on the heart attack.''

A funeral service will be conducted at the West Parish Church in Hamilton, where Cullen had been a Boys' Brigade member, on Thursday followed by cremation at Daldowie.

Many of Scotland's showbusiness personalities are expected to attend the funeral service, conducted by his lifelong friend, the church minister Stan Cook.

Cullen, of Mossdale Gardens, Hamilton, was dropped from Rab C Nesbitt and Scottish Television's Wemyss Bay children's programme after admitting child pornography charges at Hamilton Sheriff Court in June last year.

The day before he died, BBC Scotland had been set to invite him to return to a new Nesbitt series.

He had been jailed for nine months for taking pornographic pictures and videos. He spent two weeks in Barlinnie jail on suicide watch before being released on appeal when the sentence was reduced to three years' probation.