Andrew Hill, PhD, is a lecturer, scientist, explorer, and also the lead neuroscientist at TruBrain.

Trevor Moore is a actor, comedian, writer, director, producer and musician, best known as the founding member of the comedy troupe The Whitest Kids U' Know. His latest special "High on Church" is available now at trevormoore.comedydirect.co...

Alex Winter is a filmmaker and actor known best as Bill S. Preston, Esquire, from the "Bill & Ted's Excellent Adventure" franchise. His latest film "Deep Web" tells "the untold story of Bitcoin and The Silk Road" and is available on May 31...

Abby Martin is an American journalist and former host of "Breaking the Set" for RT America. Check out her work at http://mediaroots.org

Duncan Trussell is a stand-up comedian, and host of his own podcast “The Duncan Trussell Family Hour”. http://podcasts.joerogan.net http://duncantrussell.com

Vinny Shoreman is a mind coach and kickboxing & muay thai commentator and coach. http://www.vinnyshoreman.com/

Rich Vos is a stand up comedian. He and his wife, Bonnie McFarlane, have a documentary "Women Aren't Funny" available now on iTunes. http://podcasts.joerogan.net

Jonathan Gottschall is an American literary scholar specializing in literature and evolution. He teaches at Washington and Jefferson College in Pennsylvania and his latest book, The Professor in the Cage, is available now. http://jonathango...

Nick Curson is a strength and conditioning coach known for working with UFC World Champion Rafael Dos Anjos and Russian boxer Ruslan Provodnikov. http://www.speedofsport.com/

Corey Knowlton is an international hunting expert, known recently for winning a $350,000 auction to kill a black rhino in Namibia. He is also known for working with hunter Jim Shockey on television shows "The Professionals" and "Uncharted"

Joe is joined by Aubrey Marcus, Eddie Bravo & Brendan Schaub to watch the fights on May 16, 2015.

Dom Irrera is a stand up comedian, and also hosts his own podcast called "Dom Irrera Live from The Laugh Factory." http://www.domirrera.com/

Bryan Callen is an actor and stand-up comedian, and together with Brendan Schaub he also hosts "The Fighter & The Kid" podcast. http://bryancallen.com

Joe is joined by Aubrey Marcus, Eddie Bravo & Brendan Schaub to watch the fights on May 16, 2015.

Dean Delray is a stand up comedian. He has his own podcast called "Let There Be Talk" available on iTunes & Stitcher. http://deandelray.com/