In the British series Sherlock (2010-2017) starring Benedict Cumberbatch and Martin Freeman, there are 3 episodes featuring adults who were displaced as children.

In Season 1, Episode 2 Sherlock Holms (Cumberbatch) and John Watson (Freeman) investigate who is using an ancient Chinese numbering system as part of a smuggling operation.
Chinese twins, orphaned as children, have been involved in a criminal gang. One of them is has since left.

In Season 2, Episode 2, 27-year-old Henry Knight says he was orphaned 20 yrs previously; he saw his father being torn to pieces by a monstrously large creature. Sherlock & Watson are investigating because Henry Knight thinks the local government research station is breeding strange & monstrous creatures.

In Season 4, Episode 2 we learn that Sherlock & Mycroft have a sister who was institutionalized as a child because she had killed Sherlock’s dog and set the family home on fire. Sherlock has no memories of his sister. Mycroft reveals the woman is still institutionalised, now in a maximum-security facility in the North Sea.