Gisli is one of the founders of Vesturport Theatre For the Lyric, as actor: Metamorphosis (2006) and Nights at the Circus. For the Lyric, as Director: Metamorphosis and Love – The Musical (Lyric Hammersmith/Reykjavik City Theatre/Vesturport Theatre). For Vesturport, as actor: Surf; Mr Man; Titus Andronicus and Romeo and Juliet (Young Vic/Playhouse/Reykjavik City Theatre). For Vesturport, as Writer and Director: Woyzeck (Young Vic/ Barbican, BITE), Romeo and Juliet (Young Vic/Playhouse/Reykjavik City Theatre), Together (Reykjavik City Theatre/Mexico) Other theatre, as actor: A Matter of Life and Death (Kneehigh Theatre/ National Theatre); Rambo 7 (National Theatre of Iceland); Puntilla and Matti, Like Water for Chocolate and Nine Commandments (Reykjavik City Theatre). Film and TV includes: Summer Wedding; Manhunt; Niceland; DramaRama; Children (also as producer and writer – Iceland’s Academy Award entry for 2007) and Country Wedding,  Gisli is playing Hassansin in The Prince of Persia directed by Mike Newell due for release in 2010.