The Secret World of Alex Mack Wiki

Anne "Annie" Mack is a teenage girl, and one of the kids of the gifted program from Paradise Valley, Arizona. Annie is the titular character Alex's older sister. With incredible talents in science and chemistry, Annie is often the more favored of the two Mack sisters by their parents (George and Barbara).

Upon learning of the truck accident, her sister's newly acquired powers, and the chemical compound that caused them (known by the codename GC-161), Annie begins to test Alex as part of her personal science project (in hopes of winning a Nobel Prize). Though at first it seems that Annie only cares about Alex for the sake of her scientific research, she does indeed show genuine feelings for Alex's well-being.

Annie briefly works as an intern at the Paradise Valley Chemical Plant, working for (and frequently ending up on the wrong side of) the evil Danielle Atron and her henchmen Vince Carter and Lars Frederickson. In the last season of the show, Annie leaves Paradise Valley to attend the prestigious Massachusetts Institute of Technology (MIT) on a scholarship.

Annie was portrayed by Meredith Bishop in the series.