Joaquin Phoenix, Lady Gaga Bring Gotham to Venice, Electrify Fest With Ambitious ‘Joker: Folie à Deux’
Sophie Dumond (Zazie Beetz), Arthur’s neighbor in Joker, makes a brief appearance when the character is brought in as a witness for the prosecution team led by young assistant district attorney Harvey Dent (Harry Lawtey) before his villainous alter ego Two-Face shows up.