Who dated Keith Carradine?

Keith Ian Carradine ( KARR-ə-deen; born August 8, 1949) is an American actor. In film he is known for his roles as Tom Frank in Robert Altman's Nashville, E. J. Bellocq in Louis Malle's Pretty Baby, and Mickey in Alan Rudolph's Choose Me. On television he is known for his roles as Wild Bill Hickok on the HBO series Deadwood, FBI agent Frank Lundy on the Showtime series Dexter, Lou Solverson in the first season of FX's Fargo, Penny's father Wyatt on the CBS sitcom The Big Bang Theory, and U.S. President Conrad Dalton on the CBS political drama Madam Secretary.

He is a member of the Carradine family of actors that began with his father, John Carradine.

Shelley Plimpton (born February 27, 1947) is an American former actress and Broadway performer. She is perhaps best known for originating the role of Crissy in the off-Broadway production of Hair, a role she resumed when the production moved to Broadway in 1968. She is the mother of actress Martha Plimpton.