Ari Shaffir is a stand-up comedian and also hosts the podcasts Ari Shaffir’s Skeptic Tank & Punch Drunk Sports. The 2nd season of his show This Is Not Happening premieres on Comedy Central on February 23, 2016. http://arithegreat.com http:...

Daniele Bolelli is an Italian author, professor, and martial artist. His latest book "Not Afraid" (http://amzn.to/1SYRwpU) is out now and his new podcast called "History on Fire" is available on iTunes.

Hannibal Buress is a stand-up comedian, actor, television writer and host. His latest special "Comic Camisado" premieres on February 5th on Netflix.

Tom Segura is a stand-up comedian, and hosts his own podcast with his wife, Christina Pazsitzky called Your Mom's House. His new special "Mostly Stories" debuts on Netflix on January 8, 2016. http://www.tomsegura.com http://podcasts.joerog...

Phil Demers is a former Marineland employee turned truther, also known as the Walrus Whisperer. http://savesmooshi.com

Tom Papa is a comedian, actor, writer and television/radio host. Tom has a great story on "This Is Not Happening" here - http://youtu.be/487y7zJzkFM http://www.tompapa.com/ http://podcasts.joerogan.net

Brendan Schaub is a mixed martial artist and also a former college & pro football player. Bryan Callen is an actor and stand-up comedian. Together they host "The Fighter & The Kid" podcast available on iTunes.

Josh Zepps is the host of HuffPost Live & #WeThePeople LIVE available on iTunes (https://t.co/6eWfSu8tRM) and at http://wtplive.com

Bill Burr is a standup comedian and also hosts his own podcast called "The Monday Morning Podcast" His new show "F is for Family" premieres on Netflix on December 18th, 2015.

Jocko Willink is an author, black belt in Brazilian jiu jitsu, and retired commander of the most highly decorated special-operations unit of the Iraq War: US Navy SEAL Team Three Task Unit Bruiser, which served in the 2006 Battle of Ramadi....

Demetrious Johnson is a mixed martial artist. He is the first and current Flyweight Champion of the Ultimate Fighting Championship. http://www.twitch.tv/mightymouseufc125

Joe is joined by Brendan Schaub, Ben Saunders & Eddie Bravo to watch the fights on Nov. 28, 2015.

Lance Armstrong is an American former professional road racing cyclist and 7-time winner of the Tour de France.

Peter Boghossian is a philosophy instructor, activist, author, speaker, and atheism advocate. He is a full-time faculty member at Portland State University.

Josh Olin is currently Vice President of Communications at 3D Realms, a video game publisher/developer. He also previously worked as the community manager for various games, including Call of Duty & League of Legends.