New Details Emerge About Catherine O’Hara’s Cause of Death

Catherine O’Hara’s cause of death has been confirmed, bringing new clarity about her final hours and the health issues she faced.

TMZ reported that it obtained her death certificate, which states she died from a pulmonary embolism. The document also listed rectal cancer as an underlying condition. Page Six said emergency responders were called to her Los Angeles home early in the morning on Jan. 30 after she became seriously ill. She was taken to the hospital and died later that day. Her agency, CAA, previously said she had been dealing with a brief illness.

A pulmonary embolism is a medical emergency that happens when a blood clot blocks blood flow in the lungs. These clots often start in the legs before moving through the bloodstream.

When the lungs are blocked, oxygen levels can drop quickly and the heart is forced to work harder. Symptoms can appear without warning and may include shortness of breath, chest pain, dizziness, and a fast heartbeat. Cancer is one of the known risk factors because it can make the blood more likely to clot.

O’Hara spent more than 50 years working in entertainment and built a long list of beloved roles. She first gained attention on the Canadian sketch comedy show “Second City Television,” where she won an Emmy for writing. Her career later moved into film, where she became widely known for playing Delia Deetz in Tim Burton’s “Beetlejuice” and returned to the role decades later in the sequel released in 2024.

She also became a household name as Kate McCallister in the “Home Alone” movies. Her bond with Macaulay Culkin lasted long after filming ended. After her passing, Culkin shared a message on social media that touched many fans. “Mama. I thought we had time. 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.”

Later in her career, O’Hara reached a new generation through “Schitt’s Creek,” where she played Moira Rose. The role earned her an Emmy and renewed recognition. She continued working in film and television and received Emmy nominations in 2025 for “The Last of Us” and “The Studio.”

Catherine O’Hara leaves behind a long legacy in comedy, film, and television. Her characters and performances shaped decades of entertainment and will continue to be remembered by fans.

It is always difficult to lose someone who has been part of people’s lives through their work for so long. Her career shows how lasting and powerful comedy and storytelling can be. What do you think about her legacy and the impact she had on entertainment? Share your thoughts in the comments.