The main villain in the Marvel movie Thunderbolts is The Void, the dark and evil alter ego of Robert Reynolds, also known as The Sentry. Although Sentry is a superhero with immense powers like super strength, flight, and energy projection, he suffers from a split personality disorder. His good side is The Sentry, while The Void represents his destructive and villainous side
. In the film, The Void emerges as a powerful force that spreads darkness and chaos, turning people into shadows and threatening New York City. This duality makes The Void a complex villain, as he shares the same body with Sentry but acts as a separate, malevolent entity
. Additionally, the character Valentina Allegra de Fontaine appears to have a manipulative role, but her full motivations remain unclear
. In summary, the bad guy in Thunderbolts is The Void, the sinister side of The Sentry (Robert Reynolds)
