The whereabouts of legendary voice-man Casey Kasem are unknown, CNN reported today. Kasem, a radio icon and the voice of Shaggy in the original “Scooby Doo” series, has Lewy body disease, a spokesman for his daughter said. Kasem was in the care of his wife, Jean Kasem, but his daughter Kerri won caretaker custody Monday, and the family is unable to locate Casey Kasem or Jean Kasem. “Please pray that he is safe,” Kerri Kasem wrote on Facebook.