The film has a total of 4 actors who also appeared together in the Harry Potter series:
Ralph Fiennes (Harry), who plays Lord Voldemort;
Brendan Gleeson (Ken), who plays Alastor "Mad-Eye" Moody;
Clémence Poésy (Chloe), who plays Fleur Delacour;
Ciarán Hinds (The Priest), who plays Aberforth Dumbledore. Fiennes, Gleeson, and Poesy all appear in 'Harry Potter and the Goblet of Fire', though none of them share dialog together.
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