Doc Hammer

Hammer was born in Ledyard, Connecticut.^[3] He has stated that his hair naturally grows in both black and blonde, a condition he attributes to "a pigmentation problem or a birthmark or something. But my hair is naturally like this... Kinda. Because my eyebrows are black, I used to dye my whole head that color. Also, I used to enjoy looking like Dracula for some asinine reason."^[3] He lives with Ménière's disease, a disorder of the inner ear that can affect hearing and balance.^[3] He is a self-taught oil painter.^[4]

He adopted the pseudonym "Doc" in the mid-2000s.^[3]

In July 2018, Dark Horse Books, a division of Dark Horse Comics, published Go Team Venture!: The Art and Making of The Venture Bros. The book, co-authored by Hammer, Christopher McCulloch, and Kenneth Plume details the entire history of the creation of The Venture Bros. episode by episode from seasons one through six.^[5]

At an unspecified point in his adult life Hammer suffered a back injury that left him paraplegic. He regained the use of his legs but was left with a numb section in his back.^{[citation needed]}