Kieran Culkin has opened up about the tragic death of his sister, Dakota Culkin, in 2008.
The actor, 42, was raised with six siblings, including fellow star Macaulay Culkin, revealing he lost a "big part of himself" when Dakota died.
Dakota was 29 when she was working as an art production assistant on the 2009 supernatural film Lost Soul.
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That same year, she was hit by a car while crossing the street and lost her life.
"I only knew who I was because of who my siblings are," Culkin told CBS Sunday Morning.
"So, to lose one was losing a big piece of myself.
"Losing one of my favourite people in the world, it doesn't get better. It doesn't get easier, but you get used to it."
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Culkin found solace in portraying Roman Roy in the television series Succession, the star explaining he was often reminded of his sister through the show.
"After a couple seasons, I realised there was some stuff that Roman did that I was like, 'Oh, that's my sister. That was her sense of humour,'" he explained.
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"She could find exactly what the right thing to make fun of you was that would get to you but be really funny and make the room laugh. That was her."
Culkin also previously opened up about the grief he experiences on behalf of his children, Kinsey and Wilder, whom he shares with Jazz Charton.
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"I accepted at the time that this is going to be forever, and it's never going to be fine. It's always going to be devastating," the actor told The Hollywood Reporter.
"I still weep about it out of nowhere. Something funny she did will pop in the head and make me laugh, and then I'm weeping.
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