Roseby recently wrote the foreword to '100 Acting Exercises for 8 - 18 Year Olds' by Sam Marsden.
His co-creation and devised stage plays include: Faliraki - The Greek Tragedy (Lyric Hammersmith), Age Sex Location (Lyric Hammersmith & Podewil Theatre, Berlin) Our Days of Rage (Old Vic Tunnels) Olympic and Paralympic London 2012 Team Welcome Ceremonies (Olympic Village Stratford), Story of our Youth (Shaftesbury Theatre.)
He has also written three series for Radio 4, an introduction to Producers' Choice: Six Plays for Young Performers for Bloomsbury and comedy books including White Van Wit Book.
