United Kingdom, Aug. 2 -- Samantha Morton's sister has died at the age of 53 - 18 months after her biological dad passed away.

The 49-year-old actress - one of nine children, and spent most of her childhood in care after her parents split when she was two - revealed that one of her siblings departed in April, and she is "still dealing with the coroners and the trauma" four months later.

Samantha - whose biological dad and stepdad, who died in 2007, were both alcoholics, who spent much of their lives in prison, the latter for attempted murder, while her mom suffered a breakdown - told The Sunday Times' Culture magazine: "My relationship with my past changes as I age and my children age, but things keep happening. I sadly lost my sister o...