Duncan Trussell is a stand-up comedian, and host of his own podcast "The Duncan Trussell Family Hour". Christopher Ryan, Ph.D. is a psychologist, speaker, and author of New York Times best seller Sex At Dawn.

Adam Carolla is a comedian, radio personality, television host and actor. Help Adam fight the patent trolls!! - http://www.fundanything.com/patenttroll

Honey Honey is a band, featuring members Suzanne Santo and Ben Jaffe, from Los Angeles, CA currently based out of Nashville, TN. They are currently recording a new album and can be seen touring all over the world. [NOTE: At 2:05:45 the per...

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.

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.

Mariana van Zeller is a Portuguese journalist and is currently a TV correspondent for the National Geographic Channel. Mariana is also known for the Peabody award winning documentary "The Oxycontin Express" made for the Vanguard series on C...

Dan Carlin is an amateur historian and former radio talk show host. Carlin now hosts two popular podcasts available on iTunes, or through his website, to download:Common Sense and Hardcore History. Daniele Bolelli is an Italian author, p...

Jim Norton is an American stand-up comedian, radio personality, author, and actor.

Everlast is an American singer-songwriter known for hits such as "What It's Like" and "Put Your Lights On" and was a founding member of House of Pain.

Duane Ludwig is a former mixed martial arts fighter and currently is the head coach of Team Alpha Male. TJ Dillashaw is a mixed martial arts fighter currently fighting in the bantamweight division of the UFC.

Mac Lethal is an independent hip hop artist and also author of "Texts from Bennett"

Tony Hinchcliffe is an American stand-up comedian. Tony also is a writer on the TV show "The Burn with Jeff Ross"

Maynard James Keenan is a singer, songwriter, producer, winemaker, and actor, best known as the vocalist for Grammy Award-winning rock band Tool, Puscifer, and A Perfect Circle.

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.

Tom Segura and Christina Pazsitzky are married, stand-up comedians, and together they also host a podcast called "Your Mom's House"