Celebrities and Canada's prime minister are reacting to the death of actor Catherine O'Hara, who died Friday in Los Angeles ...

Celebrities worldwide share heartfelt tributes honoring Catherine O’Hara’s life and legacy after the beloved star died at 71 ...

Macaulay Culkin remembered his "Home Alone" co-star mama Catherine O'Hara on Instagram, shortly after her death was announced ...

See all the celebrity tributes ...

Macaulay Culkin’s bond with late Home Alone costar Catherine O’Hara endured for more than 30 years prior to her death at age ...

Macaulay Culkin has taken to Instagram to pay tribute to Catherine O’Hara, the beloved comedic actress who played his mother ...

Macaulay Culkin was spotted on Friday, just hours after news broke that his former "Home Alone" co-star Catherine O’Hara had ...

The 45-year-old former child star was spotted looking subdued as he left a meeting at the UTA Talent Agency in Beverly Hills, ...

Catherine O'Hara, who died Jan. 30, said 'Home Alone' co-star Macaulay Culkin had a 'totally relatable sense of humor' during a Walk of Fame speech.

Kate McCallister may have forgotten her youngest son at home, but the late, great and irreplaceable Catherine O’Hara will ...

Macaulay Culkin, Michael Keaton and Seth Rogen were among the many stars who paid homage following the death of Catherine ...

Actor Macaulay Culkin shared a heartbreaking post in reaction to the death of his “Home Alone” mom, Catherine O’Hara. “Mama.