Although Ferris Bueller’s Day Off is all about the title character’s adventures in the city, he isn’t the movie’s main character – and here’s why. John Hughes was the mind behind some of the most popular teen movies from the 1980s, among them Ferris Bueller’s Day Off, starring Matthew Broderick as the title character. Ferris Bueller’s Day Off took the audience to a Chicago suburb, where two months before graduation, Ferris Bueller decided to take the day off and skip school (for the ninth time that semester) by faking illness. Ferris had big plans for his day off, and he brought his girlfriend, Sloane (Mia Sara), and his best friend Cameron (Alan Ruck) along.

https://screenrant.com/ferris-bueller-day-off-cameron-main-character-explained/