Warner Bros.
- Several stars of the "Harry Potter" franchise have died in recent years.
- These include Michael Gambon, Alan Rickman, Robbie Coltrane, and Maggie Smith, who died on Friday.
- Here, Business Insider remembers those who helped bring the wizarding world to life.
It's been more than 20 years since the first "Harry Potter" film was released and captured the hearts of audiences across the globe.