Actor Jason Isaacs, known for portraying 'Lucius Malfoy' in the 'Harry Potter' films, shared photographs of a reunion with co-stars from the film series. "To all the Potter fans who remind us to fight for the light," he wrote while sharing a photo with Tom Felton and Matthew Lewis. Felton played Isaacs' son 'Draco Malfoy', while Lewis portrayed 'Neville Longbottom'.