Child performers on the Elizabethan stage were subjected to abduction, cruelty and violence, reveals a study by a University of Oxford academic.
Dr Bart van Es says court documents show some child actors had been forcibly snatched from the streets and threatened into performing.
Their parents were then legally obstructed from rescuing them from working in London's seediest theatres.
Dr van Es says these children faced "systematic exploitation and abuse".
The study of London's theatre in the late 16th and early 17th Century reveals a dark underside of cruelty to children.
'Violence and force'
From the 1570s, there had been theatrical troupes in which all the performers were boys, competing for audiences with plays performed by adults.
But research from Dr van Es has examined the cruel way in which some of these children had been seized with "violence and force", kept as captives and threatened with whipping.
These street kidnappings were not illegal, as the theatre owners had licences to forcibly recruit children. These powers had been granted by Queen Elizabeth I and carried her royal seal.
Dr van Es, a fellow of St Catherine's College, says that in theory these powers were intended to find choristers for the royal chapel, but it was an "open secret" they were really about forcing youngsters to join commercial theatre companies.
Theatre owners exploited this royal approval, saying it gave them "authority sufficient so to take any nobleman's son in the land".
This left distraught parents unsuccessfully trying to retrieve their abducted sons through the courts.
Henry Clifton, father of 13-year-old Thomas Clifton, said that a gang of men "did haul, pull, drag and carry away" his son on his way to school, inflicting "great terror and hurt".
He was being held at the Blackfriars Theatre - and rather than returning him to his family, the theatre owners said the boy would be whipped if he failed to obey.
The father struggling to get back his son complained of their "scornful" disregard for his complaints.
And it wasn't only his own boy who was being held against his will.