Kieran Culkin has revealed himself as the "naughty young actor" who was responsible for getting Mark Ruffalo and other co-stars high during a Broadway production of The Moment When. Ruffalo previously discussed the incident on The Graham Norton Show in 2012,

Kieran Culkin admitted that he once tricked Mark Ruffalo and other co-stars into getting stoned during a live theatrical performance. “I was 17 and stupid,” Culkin said in a recent interview with The Guardian.

Succession star Kieran Culkin recently opened up about getting actor Mark Ruffalo ‘high’ long ago as part of a prank, when they were filming a stage production together. This has sparked intrigue amongst fans who wish to learn the details about the same.