Dr. Dan Engle, MD is a practicing psychiatrist, board certified in psychiatry and neurology. Aubrey Marcus is writer, entrepreneur, and adventurer. Some of his writings and experiences can be found on his website, WarriorPoet.us, as well a...

Joe is joined by Eddie Bravo & Brendan Schaub to watch the fights on April 11, 2015. (Part 2 of 2)

Dominic Monaghan is an English actor, known for his role in "The Lord of the Rings" trilogy and on the tv show "LOST" He also has a wildlife documentary series called "Wild Things with Dominic Monaghan" which airs on the Travel Channel.

Neal Brennan is a stand-up comedian, actor, writer, director and producer. He is known for co-creating and co-writing "Chappelle's Show" with Dave Chappelle.

Sam Harris is a neuroscientist and author of the New York Times bestsellers, The End of Faith, Letter to a Christian Nation, and The Moral Landscape. His latest book "Waking Up: A Guide to Spirituality without Religion" is available now.

Joe is joined by Brendan Schaub, Bryan Callen, and Tony Hinchcliffe to watch the fights on June 20, 2015. http://podcasts.joerogan.net

Josh Barnett is an MMA fighter, currently fighting in the UFC Heavyweight division.

Tom Segura is a stand-up comedian, and hosts his own podcast with his wife, Christina Pazsitzky called "Your Mom's House" http://www.yourmomshousepodcast.com

Aubrey de Grey is an English author and theoretician in the field of gerontology and the Chief Science Officer of the SENS Research Foundation. http://sens.org/

Bert Kreischer is a stand-up comedian, actor and reality television host. Check out his book "Life of the Party" on Amazon and his podcast "The Bertcast" on Stitcher & iTunes.

W. Kamau Bell is a stand-up comic and former host of the FXX television series "Totally Biased with W. Kamau Bell"

Joey “CoCo” Diaz is a Cuban-American stand up comedian and actor. Joey also hosts his own podcast called “The Church of What’s Happening Now” http://www.joeydiaz.net http://podcasts.joerogan.net

Shane Smith is a Canadian-American journalist. He also is the co-founder and CEO of the international media company VICE.

Rory Albanese is a stand-up comedian and former executive producer/writer for The Daily Show with Jon Stewart. He's currently working on the Sundance Channel's "The Approval Matrix" and next year look for him on "Minority Report" on Comedy...

Cameron Hanes is a bowhunting athlete, "training intensively each and every day to become the Ultimate Predator."