Karen Duffy: Karen Duffy. Actress: Dumb and Dumber. Karen "Duff" Duffy is an American writer, model, television personality, and actress. She is a certified hospital chaplain, a former Coney Island Mermaid Queen, and one of People Magazine's "50 Most Beautiful People" in 1993. In 1995, Duffy was diagnosed with a rare form of the disease sarcoidosis called neurosarcoidosis. Since then, she's written two books about her experience living with chronic pain and...
