Henry Green is the made-of-awesome son of John Green and Sarah Green. He was born on January 20, 2010. He has appeared in a few Vlogbrothers videos, but for the most part, John has decided to keep Henry's appearances to a minimum, for his son's safety and privacy.

This was decided, as stated in February 15, 2010's Hello Baby!!, for three reasons. First, that he wants for Henry to be able to decide whether his life is private. Second, so that there will be fewer embarrassing moments for everyone to see, instead of just his future partner. Last, this is so that strange YouTube users will not have access to footage of his son.

While this is true, there are a few videos which Henry is in. It has been suggested through the video Cooking with a 3-Year-Old: The Mac & Cheese and Communist Celery Edition (February 26, 2013) that Henry may or may not be a communist. This is due to his refusal of his father's suggestion that they put peanut butter on their celery. While John may disapprove of communism, he approves of his son's engagement in politics so early in his life. John has also written new lyrics to a well-known lullaby for Henry, explaining what he would buy for his son, "in the event that the mockingbird doesn't sing." Needless to say, this is a strange list which can be found in the video Adorable Baby is Adorable from May 19, 2010.