Zack and Ivy are the teenage protagonists of Where on Earth Is Carmen Sandiego?. They were voiced by Scott Menville and Jennifer Hale respectively.
At eighteen years old, Ivy is an expert martial artist and skilled pilot who takes her duties as a detective seriously, being both driven and easily frustrated. In contrast, her fourteen-year-old younger brother Zack approaches his job with easygoing attitude, though he also demonstrates immaturity and impatience towards more traditional non-technological methods; however, his skills include being a polyglot and having a photographic memory, allowing the siblings to complement each other well.
In addition to appearing in television series, the siblings appear in Carmen Sandiego Junior Detective.