The Irregulars: Every Star Slated For a Role in Netflix's Sherlock Holmesian Drama

Macari, who will be playing Irregular member Billy, is probably best known for his work on a pair of TV shows. He appeared as Prince Henry in the third season of Harlots, and he joined the cast of Sex Education as Kyle in season two. More recently, he played Mogwan in two episodes of the Netflix fantasy drama Cursed.