Milly Alcock snuck her House of the Dragon co-star Fabien Frankel onto the Supergirl set, disguised as her make-up artist.
The 26-year-old actress worked on the superhero blockbuster at Leavesden Studios in Watford, England, the same building where her old show - in which she played the young Rhaenyra Targaryen - is filmed and though she didn't have time to visit the production, she managed to get the actor onto her set, but he almost ran into trouble.
