His best known parts have been in the Peter McDougall plays Just Another Saturday (1975), about sectarianism in Glasgow, and The Elephants' Graveyard (1976), both with Billy Connolly and both part of BBC's Play for Today series. He also featured in Gary Oldman's Nil by Mouth (1997).
Morrison has portrayed regular DC Kenny Lockhart on the ITV detective series '”Vera,” from the start of the program in 2011. In May 2017, Morrison was preparing to film the show’s eighth series.
