Loni Anderson 's cause of death has been announced three weeks after her death at age 79. The WKRP in Cincinnati actress died from metastatic uterine leiomyosarcoma on Aug. 3, according to a death certificate published by TMZ. No underlying conditions or contributing factors were listed.

American actress Loni Anderson's cause of death was recently revealed three weeks after she passed away. For those unfamiliar, Anderson died just two days before her 80th birthday on August 3, 2025, at a Los Angeles hospital following a "prolonged" illness.