Creator	Role
John Green John Green is an author, vlogger, producer, and educator.	Host
Hank Green Hank Green is an entrepreneur, musician, educator, producer, vlogger, and author... more	Host
Rosianna Halse Rojas	Producer
Josef "Tuna" Metesh Josef "Tuna" Metesh is a sound designer at Complexly and editor for the Dear Han... more	Editor
Alex Goldman Alex Goldman is co-host of Reply All. His work has appeared on On the Media, 99%... more	Guest
Andrew Levitt Andrew Levitt is an American drag queen, actor, and singer. He is also known as ... more	Guest
Jacob Goldstein Author of Money: The True Story of a Made-Up Thing. Formerly @planetmoney. Host... more	Guest
Ceri Riley Ceri Riley is a content manager and editorial assistant of the crash course.... more	Guest
Deboki Chakravarti Deboki Chakravarti is a freelance science writer and multimedia producer.... more	Guest
Roman Mars Roman Mars, born on October 16, 1974, is the host and producer of 99% Invisible,... more	Guest
Travis McElroy Travis McElroy is a celebrated podcaster, actor, and writer. As a co-host of the... more	Guest
Brennan Lee Mulligan Brennan Lee Mulligan is an improviser, writer, and actor hailing from the mean s... more	Guest
Emily Graslie Emily Graslie is an American science communicator and YouTube educator. She star... more	Guest
Ashley C. Ford Ashley C. Ford is a writer, podcaster, and educator who deals with topics includ... more	Guest
Zach Kornfeld Zach Kornfeld is a video producer, actor, comedian, and screenwriter.... more	Guest
Randall Munroe Randall Patrick Munroe is an American cartoonist, author, engineer, scientific t... more	Guest
Flula Borg Flula Borg is a YouTube personality, actor, musician, comedian, DJ, singer, song... more	Guest
Dr. Aaron Carroll Dr. Aaron Carroll is a pediatrician and Professor of Pediatrics at the Indiana U... more	Guest
Jess Zafarris Jess Zafarris is an author.	Guest
Jenny Owen Youngs Jenny Owen Youngs is a singer-songwriter, natural history enthusiast and co-host... more	Guest