| This minifigure has only appeared in video game(s)|
Although this article is about an official minifigure, it never existed in physical form, or appeared in any official LEGO sets.
Cassie Sandsmark is the daughter of Helena Sandsmark, curator of the Gateway City museum and friend of Wonder Woman. When Wonder Woman faced some recordings brought to life, Cassie took the Gauntlet of Atlas and Sandals of Hermes to help her, and became the second Wonder Girl, succeeding Donna Troy, (who became Troia and joined the Darkstars) and like Troia, she joined the Teen Titans.
In LEGO Batman 3
She appears as a playable character. Wonder Girl can be unlocked in the Hall of Justice/Hall of Doom, but you need to have a character that can shrink its size, like Atom.