The 'Harry Potter' television series has gone into production, with more casting news and photos set to be released over the coming weeks.

This is the first time, however, we're seeing the actors in their Hogwarts garb. Below, see the cast of "Harry Potter" side-by-side with the actors from the original movie series, which started in 2001 and concluded in 2011.

HBO's new Harry Potter series is officially filming, with fresh faces cast as Harry, Ron, and Hermione. Here's the full cast, 2027 release date details, and what makes this reboot different.