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File: Radio personality Casey Kasem arrives at the Golden Dads Awards ceremony at the Peterson Automotive Museum on June 15, 2005 in Los Angeles, California.
The three adult children of radio host Casey Kasem have filed suit in Los Angeles Superior Court to gain control over his health care.
They say he is suffering from advanced Parkinson's disease and is being isolated from his children, friends and family members by his wife, Jean.
The petition for conservatorship filed Monday brought a long-running family feud into the courts. The applicants, Julie, Kerri and Mike Kasem, contend that Kasem's wife refuses to tell them the name of their father's primary care physician and they are unable to check on his condition.
Julie, who has a master's degree in medicine, and her husband, Dr. Jamil Aboulhosn, presented papers signed by her father in 2007 giving them power of attorney over his health care.
Kasem is known for hosting the Top 40 countdown and voicing Shaggy in Scooby-Doo.