Connolly may be best known in America for starring in the television series Head of the Class he played a teacher in the final season. However, by the time he began that role in 1990, Connolly was already an established comedian internationally. He has toured consistently over the past 37 years, frequently selling out venues across Europe. Connolly also often appears on the big screen, most recently in Lemony Snicket's A Series of Unfortunate Events.