Gethin studied English Literature at Oxford University before training at LAMDA. Whilst at Oxford Gethin was President of the OUDS. He received a Scholarship to the British American Drama Academy in London, England from July to August 2004 where he attended workshops with Fiona Shaw, Alan Rickman, and Brian Cox. He has a tenor singing voice. He was trained in African dance with Bode Lawal. 演艺经历 2017年电影《柯达克罗姆胶卷》中饰演Jasper；2017年电影《第一杀》中饰演Levi；2014年电影《哥本哈根》中饰演威廉；2008年电影《狂乱之外》中饰演Noddy2015年电视系列剧《罪恶的灵魂》中饰演CharlesManson；2011年电视系列剧《权力的游戏》中饰演蓝礼·拜拉席恩。
