Some of the dialogue from Jason Isaac's Lucius Malfoy in the Harry Potter series wasn't in the script - it was made up on the spot by the accomplished actor. Isaacs got talking about his improvisation skills while in conversation with Jesse Tyler Ferguson for the podcast Dinner's On Me.

Jason Isaacs just shared a fun anecdote from his first day filming Harry Potter and the Chamber of Secrets, and a line that he ad-libbed. Isaacs spoke to Empire Magazine about his new movie The Salt Path,

British actor Jason Isaacs joined Jesse Tyler Ferguson for a meal and a chat on the latest episode of Dinner's on Me. The pair met at the London vegetarian restaurant Tendril (Isaacs is vegan, but Ferguson said he loves a challenge) and they discussed several contours of the White Lotus star's career.