Cause of Death Revealed for Catherine O'Hara, 'Home Alone' Actress

Los Angeles forensic authorities have officially revealed the cause of death for Catherine O'Hara, the renowned actress who played Kate McCallister, Kevin's mother in the movie Home Alone.

Cause of Death Revealed for Catherine O'Hara, 'Home Alone' Actress

TL;DR

  • Catherine O'Hara died on January 30, 2026, at age 71.
  • The official cause of death was rectal cancer.
  • She was diagnosed with cancer in March of the preceding year.
  • O'Hara also had situs inversus, a rare genetic condition.
  • Her body was cremated and her remains were given to her husband, Bo Welch.
  • Tributes were paid by Hollywood figures including Pedro Pascal, Eugene Levy, and Macaulay Culkin.
  • O'Hara had a notable career in films like 'Beetlejuice' and 'Home Alone,' and series like 'The Last of Us.'