|This article is about the character from the 1994 animated series. You may be looking for the character from the 2019 animated series.|
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Zack is one of the main characters from the T.V show Where on Earth is Carmen Sandiego?, and was featured in the game Carmen Sandiego: Junior Detective. He can speak over 20 languages, is very good at science and engineering and has a photographic memory. His older sister, and ACME detective partner, is Ivy.
In the first episode 'The Stolen Smile', Zack is selected by 'the Player' to be Ivy's partner in the pursuit of Carmen, much to Ivy's chagrin, claiming she can handle Carmen all by herself. They remain partners throughout the total of the series.
His character is extremely intelligent. In the episode "Split up" Zack proved to be even smarter than Dr. Sarah Bellum, a briliant developer of robots and one of Carmen Sandiego henchwomen, whos IQ is 200.