Qor qoraalka faqradan - O'Neill waa halyeey ka tirsan Bandhigyada Fringe ee Edinburgh, isagoo halkaas ku soo bandhigay bandhigyada istaagida ama tiyaatarka in ka badan labaatan sano. Waxaa loo magacaabay abaalmarinta Perrier ee 1994
Wuxuu ku guuleystay abaalmarinta Fringe First 1999-kii isagoo la shaqeynayay Sean Hughes oo uu ku qaatay masraxa tiyaatarka "Dehydrated and Travellin' Light". Tiyaatarka waxaa ka mid ahaa 12 nin oo careysan, Mid ka mid ah ayaa ka soo duulay Cuckoo's Nest iyo The Odd Couple. Waxaa ka mid ahaa heesaha "Off My Face" iyo "It Was Henry Fonda's Fault".