Rubuta ci gaba don wannan sakin layi - O'Neill tsohon soja ne na Edinburgh Fringe Festivals, yana yin wasan kwaikwayo ko wasan kwaikwayo a can sama da shekaru ashirin. An zabi shi don kyautar Perrier ta 1994
tare da wasan kwaikwayonsa "Yana da Kadan Kamar Wannan", kuma ya lashe Fringe First a 1999 tare da Sean Hughes don wasan kwaikwayon wasan kwaikwayo "Rashin ruwa da Travellin 'Light". Gidan wasan kwaikwayo ya hada da 12 Angry Men, One Flew Over The Cuckoo's Nest da The Odd Couple. Tsaye-tsaye ya hada da "Off My Face" da kuma "It Was Henry Fonda's Fault".