Penn Jillette is an American magician, actor, musician, and best-selling author. He is best known for his long-standing partnership with fellow magician Teller. The duo gained international fame through their stage show 'Penn & Teller' and their television series 'Penn & Teller: Bullshit!'. Jillette is widely recognized for his imposing physical stature and his signature red fingernail on his left hand. He is a prominent advocate for libertarianism, atheism, and scientific skepticism. Throughout his career, he has authored several books exploring his personal philosophies and experiences in show business. He has also appeared as a contestant on 'Dancing with the Stars' and 'The Celebrity Apprentice'. Jillette frequently hosts his own podcast, 'Penn's Sunday School', where he discusses current events and personal anecdotes. He continues to perform regularly at the Rio All Suite Hotel and Casino in Las Vegas. His work often focuses on debunking pseudoscience and promoting critical thinking among his audience.