Dog Man is a comic book character George and Harold created in kindergarden after they got sent to detention by Mr. Krupp. Dog man was a police dog named Greg who one day is going to help his owner stop a bomb but they get blown up in the scene. In the hospital, the officer's head starts to die from the accident,and Greg's body is dying as well.But the nures lady has an idea to keep Greg and his owner from dying.So they replace the officers head with greg's and then greg becomes known as the amazing dog man. At the end of Captain Underpants and The Attack of The Talking Toilets Color Edition, a teaser for the Dog Man Comic Book is coming out soon with different comics inside the book and it will be the 4th epic novel by George and Harold.
Dog Man currently appears in three comic books by George and Harold:
According to the end of Captain Underpants and the Sensational Saga of Sir Stinks-A-Lot, George and Harold first created him in Kindergarten, as shown in Captain Underpants and the Terrifying Re-Turn of Tippy Tinkletrousers. It is also confirmed that they will feature him in his own book coming out on August 30th, 2016.