The driver in a wrong-way crash that killed a British teen was the wife of an American diplomat who fled the country to avoid arrest — and the grieving family is pleading with President Trump to intervene.

“President Trump, please listen. We’re a family in ruin,” Charlotte Charles told Sky News Friday. “We can’t grieve. Please, please let her get back on a plane.”

Charles’s 19-year-old son, Harry Dunn, was killed Aug. 27 when his motorcycle was struck head-on by a vehicle driving on the wrong side of the road outside a US intelligence facility in Northamptonshire, England.

The driver, who initially cooperated with police, is the spouse of an American official assigned to the UK, the US embassy in London confirmed.

The victim’s family received a personal letter from US Ambassador Woody Johnson, who expressed his “profound sadness” at Harry’s death.

But the driver, who has not been publicly identified, claimed diplomatic immunity when local police attempted to detain her — and she and her family have left Britain.

“I have called the US Ambassador to express the UK’s disappointment with their decision and to urge the Embassy to re-consider it,” Foreign Minister Dominic Raab said Friday.

“We’re disgusted, appalled, how she could be having this cloak wrapped around her,” said Tim Dunn, Harry’s father. “I can’t believe she’s living with herself.