Beloved Actress Catherine O'Hara Dies at 71

Pulmonary embolism caused by rectal cancer cited as cause of death

Published on Feb. 9, 2026

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Beloved actress Catherine O'Hara passed away on January 30th at the age of 71. Her death certificate revealed that the immediate cause of death was a pulmonary embolism, with rectal cancer listed as a contributing factor. O'Hara had been undergoing treatment for rectal cancer since March of the previous year.

Why it matters

O'Hara's death highlights the often-silent dangers of pulmonary embolism and the increased risk of blood clots associated with certain types of cancer, like rectal cancer. Her passing serves as a reminder of the importance of early detection and preventative measures for both conditions.

The details

A pulmonary embolism occurs when a blood clot, typically originating from the legs or pelvis, travels to the lungs and blocks an artery. This can restrict blood flow and cause serious, life-threatening symptoms like shortness of breath, chest pain, and rapid heartbeat. Cancer, including rectal cancer, can significantly increase the risk of developing blood clots and pulmonary embolisms. O'Hara's oncologist last saw her just days before her passing.

  • Catherine O'Hara passed away on January 30, 2026.
  • O'Hara had been undergoing treatment for rectal cancer since March of the previous year.

The players

Catherine O'Hara

A beloved actress known for her roles in films like 'Home Alone' and the TV series 'Schitt's Creek'.

American Cancer Society

A nationwide, community-based voluntary health organization dedicated to eliminating cancer as a major health problem.

National Heart, Lung, and Blood Institute

The leading U.S. government agency for conducting and supporting research on the causes, prevention, and treatment of heart, lung, blood, and sleep disorders.

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What they’re saying

“Catherine O'Hara's passing is a tremendous loss for the entertainment industry and her many fans. She was a true comedic icon, bringing joy and laughter to audiences for decades.”

— Macaulay Culkin, Actor and Colleague (Instagram)

“Catherine was not only a brilliant actress, but also a dear friend. We will miss her dearly, but her legacy will live on through the incredible work she left behind.”

— Eugene Levy, Actor and Colleague (Twitter)

What’s next

The American Cancer Society and National Heart, Lung, and Blood Institute offer resources for understanding the risks and prevention of pulmonary embolisms and rectal cancer. Individuals are encouraged to speak with their healthcare providers about regular screenings and preventative measures.

The takeaway

Catherine O'Hara's tragic passing serves as a sobering reminder of the importance of early detection and proactive healthcare, especially for those facing cancer and increased risk of blood clots. Her legacy as a beloved comedic icon will continue to inspire and entertain audiences for years to come.