Johnny had reservations about marrying Amber Heard, his ex-doctor confirms.
In a video disposition in court, Dr Alan Blaustein, a psychiatrist, confessed that the star deeply struggled to stay sober.
The doctor added that his assessment of Depp made him believe the actor has anxiety and a potential bipolar disorder.
The Pirates of the Caribbean had a traumatic childhood, where his 'violent' mother drove father to leave the actor's childhood home.
Depp was also worried about marrying a 29-year-old Amber Heard in 2015. He himself was 51 at the time.
Mr Blaustein later claim Mr Depp once told him he had a "chaotic" relationship with his ex-wife, and had "expressed anger towards her".
It was also claimed by the psychiatrist would refer to "something horrible" inside him as a "devil," reports Mirror.co.uk.
Depp has sued ex-wife Amber Heard for defamation over domestic violence allegations. The trial continues.