Millar worked in the shipyards, where he became a shop steward, before becoming a founder member of Ulster Protestant Action in 1956.
[1] Millar was first elected to Belfast City Council in 1972, representing Dock,[2] then the Antrim and Shore Road areas.
[1] Millar was also elected to the Northern Ireland Assembly in 1973 for Belfast North as an Ulster Unionist Party anti-Sunningdale Agreement candidate.
Two years later, he called for Irish Travellers to be "incinerated",[2] while in 1989, he was fined £50 for punching Democratic Unionist Party councillor Sammy Wilson.
[1] He also faced criticism for describing Nelson Mandela as a "black Provo", and gay people as "deviants".