Ricky Schroder is an actor and film director. He debuted in the 1979 hit film The Champ, going on to become a child star on the sitcom Silver Spoons. His latest work is a docu-series called "The Fighting Season". Learn more about your ad choices. Visit podcastchoices.com/adchoices

Jordan Gilbert is a professional gamer better known as "c9n0thing" on the internet. He is currently best known for playing Counter Strike: Global Offensive and can be seen streaming his gameplay at http://www.twitch.tv/n0thingTV Learn more about your ad choices. Visit podcastchoices.com/adchoices

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/ Learn more about your ad choices. Visit podcastchoices.com/adchoices

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://jonathangottschall.com/ Learn more about your ad choices. Visit podcastchoices.com/adchoices

Joe is joined by Aubrey Marcus, Eddie Bravo & Brendan Schaub to watch the fights on May 16, 2015. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Joe is joined by Aubrey Marcus, Eddie Bravo & Brendan Schaub to watch the fights on May 16, 2015. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Adam Scorgie is an independent filmmaker, most commonly known for his work on The Culture High, The Union: The Business Behind Getting High & Ice Guardians. http://www.theculturehigh.com/ Learn more about your ad choices. Visit podcastchoices.com/adchoices

Dom Irrera is a stand up comedian, and also hosts his own podcast called "Dom Irrera Live from The Laugh Factory" available on Spotify. http://www.domirrera.com/ Learn more about your ad choices. Visit podcastchoices.com/adchoices

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 as links to his latest venture, Onnit Labs. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Joe Schilling is an American Muay Thai kickboxer and MMA fighter who competes in the super middleweight and light heavyweight divisions. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Brad Williams is an actor and stand-up comedian. Brad has a new special airing May 8 on Showtime called "Brad Williams: Fun Size" and he also hosts his own podcast called "About Last Night." Learn more about your ad choices. Visit podcastchoices.com/adchoices

Big Jay Oakerson is a stand up comedian and he also hosts his own show "Legion of Skanks Podcast" available on Spotify. http://bigjaycomedy.com Learn more about your ad choices. Visit podcastchoices.com/adchoices

Rich Roll is a plantpowered wellness advocate, bestselling author, ultra-athlete and host of "The Rich Roll Podcast," available on Spotify. http://www.richroll.com/ Learn more about your ad choices. Visit podcastchoices.com/adchoices

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. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Greg Proops is a stand-up comedian, also well-known for his improv comedy on the show "Whose Line is it Anyway?". He currently hosts his own podcast called "The Smartest Man In The World", available on SPotify, and has a new book available in May 2015 called "The Smartest Book In The World". Learn more about your ad choices. Visit podcastchoices.com/adchoices

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/ Learn more about your ad choices. Visit podcastchoices.com/adchoices

Remi Warren is a hunter, adventurer, and videographer. His new show "Apex Predator" is on the Sportsman Channel and available at http://apexpredator.tv Learn more about your ad choices. Visit podcastchoices.com/adchoices

Bryan Callen is an actor and stand-up comedian, and together with Brendan Schaub he also hosts "The Fighter & The Kid" podcast available on Spotify. http://bryancallen.com Learn more about your ad choices. Visit podcastchoices.com/adchoices

Jim Norton is a stand-up comedian, radio personality, author, and actor. His latest special "Contextually Inadequate" debuts April 24 on Epix. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Abby Martin is an American journalist and former host of "Breaking the Set" for RT America. Check out her work at http://mediaroots.org Learn more about your ad choices. Visit podcastchoices.com/adchoices