Cassandra Sandsmark was born to archaeologist Helena Sandsmark and the demigod adventurer Lennox. Her father left when she was four, after which Helena and Cassie traveled the world from dig site to dig site. Helena became Archaeologist of the Year for five years in a row. Cassie learned much about archaeology and foreign languages, but this globetrotter lifestyle left no room for school or friends. In order to cope with her frustrations and lack of a normal life, she turned to crime. Wherever she went with her mom, she would steal art from museums and collectors.
At age 16, she met the art thief Diesel when he saved her from local police. Not having had any friends, she immediately fell for the impressive figure. The two started "dating" - Diesel would meet up with Cassie whenever she went on an expedition with her mother, and they would sneak off together, stealing art, meeting fences and business partners, and living in luxury hotels. Diesel called her his biggest treasure, and was uneasy that she still spent time on the dig sites.
Several months later, at a dig site near Angkor Wat in Cambodia, everything changed. Diesel had gone ahead and explored a dangerous section of a temple. When Cassie found him, he was being attacked by a liquid metal. Because she couldn't get it off, she searched for tools in the temple. She found two ancient bracelets, which turned out to be related to the metal. They transformed her clothes into armor, and gave her new insights into what the metal was. It was an alien parasite, and she knew Diesel wasn't strong enough to control it. She conned the metal to release him and choose her instead, but instantly regretted it, as she couldn't master it with ease.
Diesel was outraged that Cassie stole his biggest find, his ticket to greatness. Before he could attack her, the temple collapsed. Cassie escaped, but found no trace of Diesel. The disaster severely damaged Helena's reputation, and with it, her relationship with her daughter.
Cassie became a wandering thief, stealing from wherever she went. However, she kept most of it rather than fencing it off. The media had come to dub her "Wonder Girl", but she hated that name. She had no relation to Wonder Woman (to her knowledge), and was so intimidated by the woman she had never met that she was reluctant to use a name similar to hers.
Current Version:
Wonder Girl (Demigod)
Former Version:
Wonder Girl (Silent Armor)
