Linda Matthews has stopped productions before. On the set of Steve Stone's 2017 psychological horror In Extremis, a young girl playing a cancer patient broke down in tears just before filming — the bald cap reminded her of her friend's mother undergoing cancer treatment. Matthews called it. End of scene. That's the job: reading the room faster than any director, and having the legal authority to act on it. Matthews left banking to found Premier Chaperones in 2010. Fifteen years later, she's worked on some of the world's biggest film and television sets, operating inside a role that UK law mandates but the industry structurally ignores. Every child under 16 on a British set requires a chaperone by law. In practice, that means navigating between pseudo-social worker, surrogate parent, and stand-in sheriff — enforcing child performance regulations and holding the power to call time on a shoot regardless of executive wishes or the production company's bottom line. The regulatory architecture behind that power exists because the alternative is documented history. Judy Garland signed to MGM at 13; the studio controlled her diet of black coffee, chicken soup, and cigarettes while routinely supplying amphetamines. She died from an accidental barbiturate overdose at 47. In 2022, Olivia Hussey and Leonard Whiting sued Paramount Pictures over their experience filming Franco Zeffirelli's Romeo and Juliet as minors, alleging they had been promised flesh-coloured undergarments for an intimate scene before being persuaded by Zeffirelli to shoot nude. The courts dismissed the case, but the question it raised — how much agency a minor actually has when creative licence outweighs their ability to say no — remains uncomfortably open. UK penalties for breaching safeguarding rules now reach £1,000 per offence, with the most serious violations carrying up to six months' custody. Stephen Rawnsley coordinated more than 40 licensed chaperones and oversaw more than 350 child actors during the production of Adolescence, Netflix's record-breaking drama. His IMDb credit sits near the bottom, sandwiched between runners and someone listed under 'insurance.' On the BBC's Emmy-winning Odd Squad, he does the pastoral work the industry doesn't photograph: walking first-time child actors through set protocol, reassuring them that a director asking for another take isn't a sign they've failed, while being honest that walking off a job has professional consequences. Matthews, meanwhile, spent an entire summer on The Fantastic Four: First Steps and took her husband to the cinema expecting to see her name in the credits. It never appeared. The 2024 documentary Quiet on Set: The Dark Side of Kids TV put numbers to the stakes. Former Nickelodeon star Drake Bell alleged he was sexually abused at 15 by dialogue coach Brian Peck, who was later convicted of child sexual abuse offences. Chaperones are the structural gap between that outcome and a child having a trusted, legally empowered adult in their corner — someone whose duty runs to the child, not the production. On the BBC's 2015 Cider with Rosie adaptation, Matthews insisted on a closed set for a nude swimming scene involving a minor, reducing the crew to herself, the cameraman, and the director. For Montanna Thompson, who played Justine Littlewood in CBBC's The Story of Tracy Beaker, the relationship with her chaperone Mary wasn't professional obligation — it was family. They travelled and worked together for the better part of five years, staying in adjoining hotel rooms across Cardiff, Newcastle, Manchester, and Bristol. When Thompson started her period on set, Mary walked her through it and went to Boots for supplies. Another chaperone, Russell, cooked dinners for homesick child actors and let Thompson paint his nails. These are not footnotes. This is the actual work. Chaperones earn near minimum wage, have no dedicated trade union, and regularly wait through bureaucratic delays as payment sign-offs circulate between agencies and production companies. Both Matthews and Rawnsley maintain friendships with former charges now in their 20s — invited to opening nights, premieres, and theatre shows by the children they once protected. The industry they work in trades on underdog stories and emotional catharsis. It cannot find space for their names in the credits.