Comedian Mark Thomas said he was "shocked" after discovering his name on a blacklist drawn up for construction companies.
He said he was not "massively surprised" to see his name had been included on secret files of thousands of mainly building workers - many of them do not know they are on the list.
Thomas's name was found by the GMB union, which is pursuing compensation on behalf of a number of its members and others such as environmental activists.
The comedian said: "I wasn't massively surprised, but I was shocked. I don't work in the construction industry, although I have been involved in campaigns against the activities of building firms. But to include a comic in all of this is just nuts."
Thomas said he suspected the police colluded with construction firms to collect information.
He said: "This needs to be highlighted and the police should be held to account. There has to be a proper investigation, such as a parliamentary inquiry to make sure this kind of behaviour is outlawed."
The construction industry has shrunk by 10%, with the loss of 89,000 jobs, since the coalition Government came to power, according to a new study.
Cuts to publicly-funded projects were the main reason for the slump, which has led output to be at its lowest level since 1998, research by the Trades Union Congress showed.
The coalition has reduced support for public construction works by over 27%, while spending on school, hospital and transport building projects has been slashed by over 37%, said the union organisation.
The fall in public sector building projects has not been made up by the private sector, which has also seen a decline in construction work since the coalition was formed, said the report.
Maina Kiai, the UN special rapporteur on the rights to freedom of peaceful assembly and of association, said he was "appalled" to hear about the blacklisting of union members in the UK construction industry.
Speaking on a trip to London, he said: "It is crucial that strong actions be taken against the making and using of such lists as a deterrence."