Wonder Girl is a superheroine from the DC Comics universe, primarily associated with the Wonder Woman franchise. She first appeared in 1942 and is often depicted as a younger version of Wonder Woman, showcasing similar powers and abilities, including super strength, agility, and combat skills. The character has undergone various iterations, with different identities such as Donna Troy and Cassie Sandsmark. Each version has her own unique backstory, but they all share a connection to the Amazonian heritage and the ideals of justice and empowerment that Wonder Woman embodies.