Benedict Cumberbatch has revealed his devastation following the ‘horrible’ death of his sister Tracy Peacock.

It was not known to the public Tracy Peacock, affectionately known as ‘Tracks’, had even been ill, let alone passed away.

Tracy Peacock was the daughter of Benedict Cumberbatch’s actress mother, Wanda Ventham, from her first marriage to James Tabernacle.

When Wanda married Cumberbatch’s father, Timothy Carlton, the then teenager Tracy Peacock stayed with her mother, so grew up with the future star.

Tracy Peacock would often look after her baby brother, and once accidentally left him too long on a freezing rooftop after placing him there to calm him down.

‘She forgot about me,’ he recalled, affectionately.

‘I mean, it was funny. She was in the kitchen with her friends and she suddenly saw the snow falling through the window.’

What Happened To Benedict Cumberbatch’s Sister?

Tracy Peacock died of cancer on December 16, 2021 and according to Benedict Cumberbatch, she has been battling the disease for seven years.