Soldier Boy is a character from the Amazon Prime series "The Boys." In the series, Soldier Boy is a former superhero who served in World War II as part of a government program to create enhanced soldiers. However, after the war, he becomes disillusioned with the government and superhero culture and retires.
In season 2, it is revealed that Soldier Boy's son is actually Homelander, the main antagonist of the series. Soldier Boy's revenge storyline is not yet fully fleshed out in the series, but it is suggested that he is planning to take revenge against Vought International, the company responsible for creating Homelander and other superheroes, and potentially against Homelander himself for his role in the company's actions.