Macaulay Culkin's bond with late Home Alone costar Catherine O'Hara endured for more than 30 years prior to her death at age 71 in January 2026. "Mama. I thought we had time," Culkin wrote via Instagram when news of her death broke on January 30, 2026. A spokesperson for the actress confirmed to Us Weekly that she'd died following a "brief illness" but an exact cause of death remains unclear. Per a Los Angeles Fire Department spokesperson, paramedics transported O'Hara to a local hospital in "serious condition" after receiving a medical aid call to her Brentwood home.