i’d like to add an honorable mention to Gabriel Anwar for her horrible irish accent on the TV show “Burn Notice” which conveniently disappeared halfway through the first season.
So, she was so bad with the accent that they just changed her character in midstream from being Irish to being something else? How funny!
Actually, she's British and I think she merely Americanized her speech for the show.
By the way, that House star does an amazing job speaking American.