Gary Oldman in Los Angeles on Sept. 15, 2024; Michael Gambon as Albus Dumbledore in Harry Potter and the Order of the Phoenix (2007) “I would bet my money that they will get a whole new cast of ...

In an exclusive Post interview, Ben Barnes talks about how "Harry Potter" fans used to cast him as Sirius Black — and whether he would play him in the upcoming HBO show.

Harry and Sirius had a deep relationship on and off the screen. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.