Hank Green is probably best known for being one half of the Vlogbrothers on Youtube with his
brother John Green. On said channel, Hank often writes and performs songs - usually of a comedic nature - talks about Harry Potter and other nerdy subjects, and does challenges/punishments that the Nerfighters give him (such as humping many of the landmarks in his town of
Missoula Montana). A common joke for the Vlogbrothers is that when John does a Question Tuesday (rarely on a Tuesday), he answers the question, "Who the eff is Hank?" by reading the definition for another person, place, or thing, such as the sun or the breed of John's dog.
He is also known for being the creator of DFTBA records (a production company that signs YouTube artists such as Charlieissocoollike and
DaveDays), the founder of
EcoGeek (a very well-known and respected environmental website), and one of the founders of the Mars Society.
Hank lives in Missoula Montana with his wife - The Katherine - and their cat Cameo. He has
Ulcerative Colitis, a problem which frequently plagues him, and has a habit of flipping off Hummers.