Kirby in 'City Slickers' is portrayed by Bruno Kirby, an American actor who was born in 1949 and passed away in 2006. He is best known for his roles in films such as 'When Harry Met Sally, ' 'The Godfather Part II, ' and 'City Slickers.' In the 1991 comedy 'City Slickers, ' Kirby plays the role of Phil Berquist, a city slicker who joins a cattle drive with his two friends. His character provides comic relief throughout the movie and helps to bring the group closer together.