Cathal O'HallinActing1Movies1TV Shows2CreditsAboutCathal O'Hallin is known for his work on Vikings (2013), The Hole in the Ground (2019) and Desmond (2016).Known ForVikingsDesmondCathal O'HallinActingCathal O'Hallin is known for his work on Vikings (2013), The Hole in the Ground (2019) and Desmond (2016).VikingsDesmond
