Jason Isaacs (born 6 June 1963) is an English actor and producer. He is best known for his roles as Lucius Malfoy in the Harry Potter film series, Colonel William Tavington in The Patriot, criminal Michael Caffee in the Showtime series Brotherhood, and Marshal Georgy Zhukov in The Death of Stalin.
Isaacs' other roles have included Dr. Hunter Aloysius "Hap" Percy in the Netflix supernatural series The OA, Captain Gabriel Lorca in the first season of Star Trek: Discovery, the voice of the Grand Inquisitor in Star Wars Rebels, the voice of Admiral Zhao in Avatar: The Last Airbender, and Russian high-roller Vasili in Hotel Mumbai.
Isaacs' stage roles include Louis Ironson in Declan Donnellan's 1992 and 1993 Royal National Theatre premieres of Parts One (Millennium Approaches) and Two (Perestroika) of Tony Kushner's Pulitzer Prize-winning play Angels in America: A Gay Fantasia on National Themes, and as hitman Ben in a 50th-anniversary revival of Harold Pinter's 1957 play The Dumb Waiter at Trafalgar Studios in the West End. He voices Dick Dastardly in the 2020 film, SCOOB!.