Marion O'Dwyer reached veteran standing the slow way, as an Irish actress with the kind of filmography that takes a while to scroll through. Neither the cinema nor the television half of the career can be called the side project. 'Love, Rosie' is the entry that tends to open any account of the career. 'The Quiet Girl' is close behind in visibility. The trail of credits goes back as far as 1999. Most of the work sits in drama.