The Spy Master identified the Timeless Child, who had been adopted by the first Tecteun, as a foundling. As the second Tecteun had the child's ability to regenerate gene spliced into the Time Lords, the Master observed that "the foundling had become the founder". (TV: The Timeless Children [+]Chris Chibnall, Doctor Who series 12 (BBC One, 2020).)
Davina McCall referred to Ruby Sunday as a "foundling" after she was abandoned by her mother. (TV: The Church on Ruby Road [+]Russell T Davies, Doctor Who Christmas Special 2023 (BBC One and Disney+, 2023).).