Greg is a multifaceted entertainer, exceling as both a stand-up comedian and television writer/producer. As a regular guest on various popular shows, he has appeared on The Howard Stern Show, Chelsea Lately, The Adam Carolla Show, and The Joe Rogan Experience, showcasing his impressive comedic skills.
In addition to his television appearances, Greg has made a significant impact in the world of radio. Since 2006, he has hosted his own radio show on Howard Stern's Sirius/XM channel, as well as his own twice-weekly podcast, Fitzdog Radio, which has garnered a dedicated following.
As a seasoned comedian, Greg has performed stand-up specials on Comedy Central and has been a regular on various late-night talk shows, including Letterman, Conan, and Kimmel. He has also spent five years as a panelist on VH1's Best Week Ever, further solidifying his reputation as a talented and versatile comedian.
Beyond his work as a comedian, Greg has also enjoyed a successful career as a writer. He has won four Daytime Emmy Awards for his work on The Ellen DeGeneres Show, and has also written for numerous other television programs, including HBO's Lucky Louie, Politically Incorrect w/Bill Maher, and many others.
As a creative force, Greg has been involved in the development of several pilots for VH1 and FX, and has served as the head writer on The Chelsea Handler Show, The Man Show, and Tiny Tonight. His impressive resume also includes a win for "The Jury Award for Best Comedian" from The HBO Comedy Arts Festival, as well as a Cable Ace Award for the MTV game show he hosted, Idiot Savants.
In 2011, Greg published his book, Dear Mrs. Fitzsimmons, which received critical acclaim from NPR and Vanity Fair.
