claim: Doug Petrie made a cameo in Dr. Horrible's Sing-Along Blog.
evidence: The Association of Government Supervisors and Radio Officers -LRB- AGSRO -RRB- was a trade union representing supervisors in the British civil service .. trade union. trade union. civil service. civil service. The union was founded in 1955 , when the Association of Government Foremen and Technical Supervisors merged with the Civil Service Radio Officers ' Association .. Over time , several other small unions merged into it , bringing into membership a wide variety of technical supervisors and some other workers , such as accountants .. By the end of the 1970s , it had a membership of 12,000 , and was active on the Civil Service Whitley Council , but did not join the Trades Union Congress as it was concerned that could be seen as a political act .. Whitley Council. Whitley Council. Trades Union Congress. Trades Union Congress. In 1980 , the union was a founder member of the Council of Civil Service Unions , receiving two seats on its council .. Council of Civil Service Unions. Council of Civil Service Unions. In 1984 , it merged into the Institution of Professional Civil Servants .. Institution of Professional Civil Servants. Institution of Professional Civil Servants