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.