The cause of death for actress Catherine O'Hara, known for her role in the 'Home Alone' films, has been confirmed as a pulmonary embolism, with underlying colorectal cancer cited as the fundamental reason. O'Hara passed away at the age of 71 on January 30 in her hometown of Los Angeles, California. This information was reported by the American entertainment website TMZ, which revealed details of her health struggles leading up to her death.

O'Hara gained widespread fame for portraying Kevin's mother in the beloved 'Home Alone' series, and her career spanned several decades, including memorable performances in films like 'Beetlejuice' and the acclaimed series 'Schitt's Creek'. Born in Toronto, Canada, in 1954, O'Hara was part of a large family and became a prominent figure in the entertainment industry through her unique comedic talent and versatile roles.

Aside from her acting career, O'Hara was married to American set designer and director Bo Welch since 1992, and they have two adult sons. Her contributions to film and television have left a lasting impact, and her passing is mourned by fans and colleagues alike, highlighting the significant influence she had in the entertainment world.