 As a freshman , Barrowman won parts in several musical productions and from 1983 to 1986 , he performed in such musical productions as Oliver ! , Camelot , Hello , Dolly ! , Li 'l Abner and Anything Goes . Looking back , Barrowman acknowledges that " without the support he received in high school , chances are that he would not now be appearing in royal command performances in the West End in front of the Royal Family or having Stephen Sondheim ask him to play opposite Carol Burnett " . 
