Popsugar Celebrity Netflix How Old Is The Irregulars Cast? The Irregulars: These Actors May Be Playing Teens, but Most Are in Their 20s 26 March 2021 by Stacey Nguyen Image Source: Netflix Netflix's The Irregulars gives Sherlock Holmes lore a touch of supernatural teen drama — except, of course, most of the actors who portray the London street urchins are actually in their 20s. The twisty series follows the broody Dr. John Watson and his work-for-hire team of street urchins, which includes 17-year-old Bea and her ragtag group of friends. As the show progresses, the misfit teens find themselves caught up in dark and supernatural crimes. It probably isn't too surprising that they aren't actually kids in real life — networks have been casting adults in their mid-20s to portray teenagers for a while now. Keep reading to find out the cast members' actual ages! How Old Is Thaddea Graham, aka Bea? 23 View this post on Instagram A post shared by Thaddea Graham (@thaddeagraham) 1 / 7 How Old Is McKell David, aka Spike? 23 View this post on Instagram A post shared by Mckell David (@jpg.mckell) 2 / 7 How Old Is Darci Shaw, aka Jessie? 18 Image Source: Getty / Mike Marsland / Contributor 3 / 7 How Old Is Jojo Macari, aka Billy? Unknown Image Source: Getty / David M. Benett / Contributor He was, however, reported to be 21 years old in this 2018 Interview Magazine profile, so it's likely that he's around 24 years old in 2021. 4 / 7 How Old Is Harrison Osterfield, aka Leo? 24 Image Source: Getty / David M. Benett / Contributor 5 / 7 How Old Is Henry Lloyd-Hughes, aka Sherlock Holmes? 35 Image Source: Getty / David M. Benett / Contributor 6 / 7 How Old Is Royce Pierreson, aka Dr. John Watson? 31 Image Source: Getty / Karwai Tang / Contributor 7 / 7 NetflixThe IrregularsStreamingCelebrity FactsTV