Succession star Kieran Culkin recently opened up about getting actor Mark Ruffalo ‘high’ long ago as part of a prank, when ...

Kieran Culkin admitted that he once tricked Mark Ruffalo and other co-stars into getting stoned during a live theatrical ...

After Mark Ruffalo said a "naughty young actor" once got him high on stage when switching a prop joint for the real thing, ...

Culkin and Ruffalo shared the stage in Playwright Horizons' 2000 production of James Lapine's "The Moment When." ...

Kieran Culkin has come forward as the culprit who got Mark Ruffalo high during a performance of The Moment When more than two ...

Mark Ruffalo revealed how he handled being pranked by Kieran Culkin - who swapped a prop joint for a real one - on the ...

With a stash of prop joints backstage, Culkin couldn’t resist the temptation to swap one out. “Uh-oh. I believe it’s happened ...

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.

Kieran Culkin is coming clean about the prank he played on Mark Ruffalo 25 years ago. The A Real Pain actor, 42, revealed in ...

Kieran Culkin has admitted that he once swapped a prop joint for a real one while acting in a play alongside Mark Ruffalo ...

Kieran Culkin has admitted that he once swapped Mark Ruffalo's prop joint for real weed during a stage production in 2000.