Where there's smoke...there just might be an angry stage manager.

Kieran Culkin has confessed. The star of “A Real Pain” and “Succession” admitted that he once swapped a prop joint for one ...

The actor responsible for getting Mark Ruffalo high on stage during an off-Broadway play reveals himself: Kieran Culkin cops ...

Kieran Culkin has revealed himself as the "naughty young actor" who was responsible for getting Mark Ruffalo and other ...

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

Kieran Culkin has admitted he's the "naughty young actor" who once got Mark Ruffalo high during a play by replacing a prop ...

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

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

Culkin said the stage manager then appeared with a message, “‘I don’t care whose it is, or what happened, but Kieran, give me the joint.’ I sheepishly handed her the roach and she said, ‘Ruin your ...

Kieran Culkin is fessing up to a prank he pulled nearly 25 years ago on his one-time Broadway co-star Mark Ruffalo.