Kieran Culkin confesses to playing weed prank on Mark Ruffalo, swapping his prop joint for a real one during a live stage production.

Succession’ star revealed that he switched prop joints for the real thing while starring in an off-Broadway production when ...

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

Kieran Culkin recalled the swapped-joint incident, which went down when he and Mark Ruffalo starred in the stage play 'The Moment When' together when the now 42-year-old Culkin was just a teen.

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

Mark Ruffalo would have no choice but to go method for a particular night of performing on stage thanks to Kieran Culkin's ...

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

“Uh-oh. I believe it’s happened,” he recalled thinking. Culkin told the outlet he ran to the wings and “just watched” as ...

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

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

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