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 ...