Getty Macaulay Culkin is addressing the death of Catherine O'Hara, who played his mother in Home Alone. The 45-year-old actor spoke out in a new interview with The Gentleman's Journal about the loss of the legendary comedic actress earlier this year. "When Catherine passed away in January, that hit me," he revealed. "That hit me pretty good 'cause, you know, it was just too soon. And I felt that we had unfinished business.