Gary Oldman recently told IndieWire that he believes Sirius Black wasn’t in the “Harry Potter” film franchise enough. The actor debuted as the fan-favorite character in 2004’s “Harry Potter and the Prisoner of Azkaban,” but that movie marked the rare “Potter” film to give Sirius significant screen time. He was just a cameo in “Goblet of Fire” and “Deathly Hallows Part 2,” while his role in “Order of the Phoenix” was mainly just to show up and die.

“I love, Sirius,” Oldman said. “He wasn’t in it enough. He turned up and then he went through the veil.”

The upcoming “Harry Potter” television series on Max will surely have more room to give Black screen time, not that Oldman thinks he’ll be back in the role.

“I would bet my money that they will get a whole new cast of people,” Oldman said. “Maybe in a few years,...