Macaulay Culkin Gets Emotional Over Death of 'Home Alone' Costar Catherine O’Hara: 'Mama, I Thought We Had Time… I Love You'

Macaulay Culkin is mourning the death of his Home Alone movie mom, Catherine O'Hara.

The actor, 45, took to Instagram on Friday, January 30, to share a touching message in her honor.

“Mama. I thought we had time,” he captioned a photo of them in Home Alone, collaged with a more recent snapshot of the stars embracing. “I wanted more. I wanted to sit in a chair next to you. I heard you but I had so much more to say. I love you. I’ll see you later.”

Culkin then wrote under his own post, "I’m mad about this."

Actor Tony Cavalero commented, "We're sending her, her family and y'all so much love ❤️."

Comedian Darcy Michael added, "She touched so many lives with her talent but I’m sure the ones she touched with her kindness are hurting the most today. I’m so sorry."

John Stamos wrote, "Sorry pally!"

O'Hara passed away at age 71 on January 30. Her cause of death has not been revealed, solely that she suffered a "brief illness."

According to a report, an ambulance was called to the star's Brentwood, Calif., home at 4:48 a.m. on Friday morning. She was rushed to the hospital in "serious condition" and died there.

Her final public appearance was at the Emmys on September 14, 2025. She was nominated for Supporting Actress in a Comedy Series for her role on The Studio and Guest Actress for a Drama Series on The Last of Us.

Culkin and O'Hara reunited in December 2023 during his Hollywood Walk of Fame induction ceremony. The Schitt's Creek alum gave a sweet speech to her friend during his historic career moment.

“Macaulay — this beautiful, dear little 10-year-old boy — was called a superstar, a moneymaker, one of the hottest leading young men in Hollywood by the world over. How does anyone survive that?” she said. “Well, I believe you’d have to possess a certain quality, a gift that dear [writer-producer] John Hughes obviously recognized in you, Macaulay: your sense of humor. It’s a sign of intelligence in a child, and a key to surviving life at any age. And from what I see, you have brought this sweet, yet twisted, yet totally relatable sense of humor to everything that you have chosen to do since Home Alone."

O'Hara continued, “Thank you for including me — your fake mom who left you home alone not once, but twice — to share in this happy occasion. I’m so proud of you.”

Culkin was visibly teary-eyed as the stars hugged.