Majory Glory is the leader of the Justice Friends and is Dexter's favorite superhero. He often appears in the Justice Friends segment on the Cartoon Cartoon Show, Dexter's Laboratory. He is a parody of Captain America because of his patriotism and Superman due to numerous superpowers.

He is extremely patriotic and fights for his country. Though courageous in battle, outside of fighting crime, he is a neat freak and has numerous obsessive habits. He loves the attention of the press, showing a bit of narcissism and mainly became a superhero because of his Uncle Sam (get the joke?). Nevertheless, he cares about his teammates and in spite of his love of attention, seems to genuinely care about doing good.