Dr. Katz, Cassie Grimaldi and The Insecure Morons. Dave Attell has been called one of the greatest standup comics whoever did it. If you ask the greats they will tell you they became great by watching Attell. He is considered a boundless fearless joke writer, and his work ethic makes him one of the most prolific artists working today. Dean Obeidallah hosts The Dean Obeidallah Show, on SiriusXM, which is the only daily national radio show hosted by a Muslim American. He is a comic and a lawyer.