In Harry Potter films, who portrayed Voldemort in his physical form?

Lord Voldemort is a sobriquet for Tom Marvolo Riddle, a fictional character and the main antagonist in J. K. Rowling's series of Harry Potter novels. Voldemort first appeared in Harry Potter and the Philosopher's Stone, which was published in 1997. Voldemort appears either in person or in flashbacks in each book and its film adaptation in the series except the third, Harry Potter and the Prisoner of Azkaban, in which he is only mentioned.

Voldemort appears in every Harry Potter film, with the exception of Harry Potter and the Prisoner of Azkaban. Several actors have portrayed him in his varying incarnations and ages. In Harry Potter and the Goblet of Fire, Voldemort is initially only heard, possessing the scratchy, weak voice heard in the first film. By the film's climax, however, he appears in his physical form for the first time, played by Ralph Fiennes.

Ralph Nathaniel Twisleton-Wykeham-Fiennes (born 22 December 1962) is an English actor, film producer, and director. A Shakespeare interpreter, he first achieved success onstage at the Royal National Theatre.