Catherine O'Hara, the beloved Canadian-born comic actor known for her roles in 'Home Alone' and 'Schitt's Creek', has had her cause of death revealed. According to a death certificate issued by Los Angeles County, O'Hara died from a pulmonary embolism, which was the immediate cause of her death at the age of 71. This condition is a result of a blood clot blocking an artery in the lungs, and the certificate notes that the underlying cause was long-term rectal cancer. The actor had been battling cancer for some time, having been under the care of her oncologist since March of the previous year.

The news of O'Hara's death took many by surprise, as her representatives initially described her passing as occurring after a 'brief illness.' Collaborators and fans alike have expressed their shock and grief, highlighting O'Hara's significant contributions to comedy and television. Her portrayal of Moira Rose in the successful series 'Schitt's Creek' earned her critical acclaim, including an Emmy award, and solidified her status as a beloved figure in the entertainment industry.

O'Hara's legacy is marked by her memorable performances and her impact on both film and television. Collaborators and fans, including those from her time on 'SCTV' and her role as Macaulay Culkin's mother in the 'Home Alone' movies, have taken to social media to pay tribute to her, emphasizing not only her talent but also her kindness and generosity. The revelation of her health struggles sheds light on the challenges many face while navigating serious illnesses and serves as a reminder of O'Hara's resilience and the joy she brought to so many lives through her work.