Hollywood actor Gary Oldman, whose streaming series ‘Slow Horses’ returned for a third season last month, critiqued his performance as Sirius Black in the ‘Harry Potter’ franchise on the latest episode of Josh Horowitz's ‘Happy Sad Confused’ podcast. Gary Oldman, 65, thinks his portrayal of the beloved Harry Potter character was "mediocre”, reports People magazine. After telling Horowitz, “I think my work is mediocre in it,” the Oscar winner said he believes he could have performed the role "differently”.

As per People, his approach may have been different if he had read J.K. Rowling's original books before starring in the films, as his late co-star, Alan Rickman, said. “Maybe if I had read the books like Alan, if I had got ahead of the curve, if I had known what's coming, I honestly think I would have played it differently," Gary said on the podcast.