I wonder though if Jimmy O's accent is really all that bad. The few people from Ireland I have ever met sound like they're just English people who mumble more. I thought that Doyle on "Angel" had the worst Irish accent I had ever heard, but it turns out that Glen Quinn, the actor who played him, actually was Irish. And he sounded more like Jimmy O'Phelan than any other Irish character on SoA. When you factor in that Titus Welliver is considered one of the best TV guest actors out there, I have to wonder if it's just our American ears.