United Kingdom, Aug. 22 -- Jason Isaacs thinks Johnny Flynn's portrayal of Lucius Malfoy will be totally different to his.

The 62-year-old actor portrayed the villainous patriarch in many of the Harry Potter movies and while he has congratulated his Operation Mincemeat co-star in landing the role in HBO's upcoming TV adaptation of JK Rowling's novels, he refused to reveal if he offered any advice.

He told Entertainment Weekly: "Johnny will do his own thing. Maybe he'll be more charming. I doubt that he'll look like me, because that was the look I came up with and he's far too original to want to copy anything."

Asked if Johnny had got in touch with him about the role, he added: "If he had, I wouldn't tell anyone.

"I texted him, and I ...