Richard Cusack, 77, an advertising executive turned actor and screenwriter whose children included Hollywood stars John and Joan Cusack, died of pancreatic cancer Monday in Evanston, Ill.
Mr. Cusack abandoned a successful 17-year advertising career in 1970 to enter the film industry.
"He said, 'Who cares if you brush your teeth with Colgate or Palmolive? There are bigger issues out there,'" said his wife, Nancy Cusack.
He won awards for a 1971 abortion documentary, The Committee, and wrote plays.
Mr. Cusack also acted on the stage and in such movies as My Bodyguard, The Fugitive and Return to Me.
He wrote the 1999 HBO film The Jack Bull, in which...