British actor David Thewlis, best known for his role as Remis Lupin in the Harry Potter franchise, has joined the cast of Red 2.

The actor will portray an information dealer known as The Frog. He acquired that nickname after poisoning the water supply at the Kremlin with an exotic Amazonian frog. Red stars Bruce Willis, Helen Mirren, John Malkovich, and Mary-Louise Parker reprise their roles from the original, with new additions Catherine Zeta-Jones, Anthony Hopkins, and Byung-hun Lee rounding out the cast.

Dean Parisot is directing from a script by Red writers Jon Hoeber and Erich Hoeber, with Lorenzo di Bonaventura and Mark Vahradian producing for Summit Entertainment.

Production is scheduled to begin later this fall in Montreal.