At the recent fixture at London stadium, West Ham fans were quick to pick up on the Australia midfielder's similarity in looks to the character of Lord Voldemort, played by Ralph Fiennes in the movie series.
Chants of "He's coming for you, he's coming for you, he's coming for you Harry Potter!" followed Mooy as he took set pieces near the West Ham fans, though he didn't appear particularly annoyed by the song.
He also regularly engages with fans on Twitter in poking fun, recently posting a caricature of himself on his profile.
Mooy has been in top form for the Terriers, gaining nominations for Premier League Goal of the Month for August for his strike against Newcastle United.
