Karolyn Grimes (born July 4, 1940) is an American actress. At age 6, Karolyn Grimes played the role of Zuzu Bailey in the holiday film It's a Wonderful Life (1946). Her childhood film career spanned 16 movies, but she is best remembered for playing the daughter of George and Mary Bailey (James Stewart and Donna Reed). The petals from her rose symbolize the values of family, friends and life itself in the 1946 classic, and it is Zuzu who speaks the movie's most memorable line, "Every time a bell rings, an angel gets his wings." In recent years, Karolyn has carried on the spirit of It's a Wonderful Life (1946), serving as the film's most active and appealing ambassador.

Karolyn Grimes (4 de juliol de 1940) és una actriu nord-americana. És coneguda pel seu paper de Zuzu Bailey a la clàssica pel·lícula de 1946 de Frank Capra It's a Wonderful Life.