Legendary actress Catherine O’Hara passed away suddenly at the age of 71, leaving fans and co-stars devastated.
Catherine O’Hara’s cause of death has been revealed after the celebrated actress passed away suddenly last month.
The Canadian-American starlet, best known for her roles in Beetlejuice, Home Alone, Home Alone 2 and Schitt’s Creek, died on 30th January in a Los Angeles hospital, at the age of 71.
She was last seen in public back in September 2025, when she made a glamorous appearance at the Emmys in Los Angeles, California.
But less than six months later her manager confirmed her tragic death to the public, sending shockwaves through Hollywood and beyond.
What was Catherine O’Hara’s cause of death?
Now, details of her death certificate, obtained by TMZ, have been released, stating that Catherine died of a pulmonary embolism.
The Los Angeles County Medical Examiner’s Office lists her immediate cause of death as a sudden blood clot in the lungs, but with rectal cancer as the long-term cause of death.
Reports also claimed that the comedy legend had been undergoing cancer treatment since March 2025.
Catherine leaves behind her heartbroken husband Bo Welch, who works in the movie world as a production designer.
The Oscar and Emmy-nominated artist is widely known for his credits on films including Edward Scissorhands and A Little Princess.
She is also survived by the couple’s two grown-up sons, Matthew and Luke Welch.