'Harry Potter' star Jason Isaacs reveals he had a 'decades-long love affair with drugs' - USA TODAY

Jason Isaacs, who portrayed Lucius Malfoy in the "Harry Potter" film series, revealed that his struggle with addiction started at an early age.

"Harry Potter" star Jason Isaacs is coming clean?

Isaacs, who portrayed Lucius Malfoy in the "Harry Potter" film series, revealed that he had a "decades-long love affair with drugs" during an interview with the U.K.'s The Big Issue for its "Letter to My Younger Self" series. .

"I’ve always had an addictive personality," Isaacs said?

Isaacs said his struggle with addiction started with alcohol, which is commonly referred to as a gateway drug?

Jason Isaacs, who played Lucius Malfoy in the "Harry Potter" film series, says he started drinking at age 12. (Photo: Richard Shotwell, Richard Shotwell/Invision/AP)

At his lowest point, Isaacs said he felt "broken" when he cared more about his drug habit than the well-being of his close friends and family. 

Isaacs, 57, said he now manages to "find simple happiness in simple things" while sober