Keith Ian Carradine, born August 8, 1949, is an American actor, singer, and songwriter whose career spans more than 50 years. He comes from the well-known Carradine acting family and is recognised for his roles in films like Robert Altman’s Nashville (1975), where he won an Academy Award for Best Original Song with “I’m Easy,” Louis Malle’s Pretty Baby (1978), and Alan Rudolph’s Choose Me (1984). On television, he became known for playing Wild Bill Hickok in HBO’s Deadwood (2004), FBI agent Frank Lundy in Dexter (2006–2009), Lou Solverson in Fargo’s first season (2014), Penny’s father Wyatt on The Big Bang Theory (2010–2019), and President Conrad Dalton on Madam Secretary (2014–2019). As of February 2026, at 76 years old, Carradine is still acting, with recent guest appearances in Law & O...