Oscar-winner played Sirius Black in the movie franchise.
Gary Oldmanthinks his portrayal of framed magician Sirius Black in the Harry Potter franchise is rather less than spellbinding.
Oldman made his debut as Sirius Black in 2004sHarry Potter and the Prisoner of Azkaban.

Gary Oldman in ‘Harry Potter and the Prisoner of Azkaban’.Everett Collection
“I think my work is mediocre in it,” says Oldman.
“No, I do.
Everett Collection
Oldman goes on to admit that he often finds fault with his work.
Gary Oldman in ‘Slow Horses’.Apple TV+
“I’ll tell you what it is,” he says.
As a result, Oldman said he turned down a lot of work to be with his children.
Thank God forHarry Potter, he told Drew Barrymore.
“As long as Apples in, Im in,” he says.