Loni Anderson dead at 79 Loni Anderson has died in a Los Angeles hospital after a prolonged illness, according to her longtime publicist Cheryl J. Kagan. 4 August 2025 Loni Anderson has died. Loni Anderson dead at 79 The 79-year-old actress - who was best known for her role as Jennifer Marlowe on the sitcom WKRP in Cincinnati - passed away in a Los Angeles hospital after a "prolonged illness", according to her longtime publicist Cheryl J. Kagan. Loni's family said in a statement: "We are heartbroken to announce the passing of our dear wife, mother and grandmother.