Besides being a kingmaker in the music industry, Kasem was also a voice actor. He voiced cartoon characters including Shaggy on Scooby-Doo and several of the Transformers on TV.
More recently, Kasem's family was involved in an emotional battle over end-of-life issues. Kasem had been suffering from Lewy Body Dementia. One side of his family wanted to continue providing life-sustaining treatment, while others wanted to fulfill what they said was their father's wish not to be kept alive if it "would result in a mere biological existence, devoid of cognitive function, with no reasonable hope for normal functioning."
Eventually, a judge sided with Kerri Kasem, who decided to stop treating Kasem.