Thirty-Nine-&-Three-Quarters-Year-Old George Beard & Forty-Year-Old Harold Hutchins

Thirty-Nine-&-Three-Quarters-Year-Old George Beard & Forty-Year-Old Harold Hutchins is the thirty year older version’s of his younger self’s

They are voiced by Jaden Rogers and Ashton Sundholm in the Sound-O-Rama Audiobooks.

"“Yeah,” “One day about thirty years ago, we saw the error of our ways. So we made a vow to straighten up and fly right!”"

- Thrity-Nine-&-Three-Quarters-Year-Old George

"“Yep!” “From then on, it was nothing but serious study, strict discipline, and—and— HEY, YOU KIDS, CUT THAT OUT!""

- Forty-Year-Old Harold

Captain Underpants and the Revolting Revenge of the Radioactive Robo-Boxers
While Slightly Younger Tiny Tippy Tinkletrousers was kicking around Benjamin Krupp, and Sulu make Crackers’s nest to lay her eggs George Beard and Harold Hutchins couldn't hear the fight going on due to two teachers screaming at their students. When Old Benjamin Krupp arrives and tells the teachers to get the students into class, George and Harold discover that the screaming teachers are themselves in the future. It is revealed by the adult George and Harold that the vow present-day George and Harold made on focusing more in class and start acting like adults is what caused them to become greatly similar to the teachers they were used to. Immediately, George and Harold make a new vow to undo their previous vow and promise to always be themselves. As a result of this, the adult George and Harold disappear and it is unknown if they still exist in the future (albeit with different personalities).