Dr. Bruce Damer is a polymath scientist, designer, author and general explorer of liminal realms. He has worked for over a decade in simulation and design of space missions for NASA, develops biochemical models for the origin of life at UC...

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

Barry Rothbart is a comedian, actor and writer. Check him out soon when his story airs on Comedy Central's "This Is Not Happening" hosted by Ari Shaffir on February 12 at 12:30am.

Ari Shaffir is a stand-up comedian and hosts his own podcasts “Ari Shaffir’s Skeptic Tank.” He also has a new season of "This Is Not Happening" premiering on Comedy Central, January 22 at 12:30am. Duncan Trussell is a stand-up comedian, and...

Keith Weber is the creator of "Extreme Kettlebell Cardio" DVDs, a physiotherapist, triathlete, and "physical culturist."

Justin Wren is an American MMA fighter, formerly on the Ultimate Fighter. He recently returned from a 1-year mission helping the Pygmy people of the Democratic Republic of the Congo. Learn more about his project here: FightFortheForgotten...

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

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...

Adam Carolla is a comedian, radio personality, television host and actor. Check out his new movie "Road Hard" at roadhardmovie.com http://podcasts.joerogan.net/

Ari Shaffir is a stand-up comedian and hosts his own podcasts “Ari Shaffir’s Skeptic Tank.” He also has a new special premiering on Comedy Central, January 16th, 2015 at 11:59pm called "Ari Shaffir: Paid Regular" http://arishaffir.com

Scott Mescudi, aka Kid Cudi, is an American recording artist and actor from Cleveland, Ohio.

Billy Corben is a documentary producer and director, best known for his films "Cocaine Cowboys " & "Cocaine Cowboys 2" and also "Broke" & "The U" for ESPN's 30 for 30 series. His latest film "Dawg Fight" will be available online on March 12...

Tony Hinchcliffe is a stand-up comedian, writer, and actor. Tony also hosts his own podcasts called "Kill Tony" with Redban, and it's available on iTunes and at http://Deathsquad.tv

Ari Shaffir is a stand-up comedian and also hosts his own podcasts "Ari Shaffir's Skeptic Tank" and "Punch Drunk Sports"