Was Megan Fox on sky high as Gwen?

No, Megan Fox was not in "Sky High." The character Gwen Grayson, also known as "Gwen," was played by actress Mary Elizabeth Winstead. "Sky High" is a Disney film released in 2005, featuring a high school for superheroes. Megan Fox is known for her roles in films like "Transformers" and "Jennifer's Body."