Katie Peretti is a fictional character on the daytime soap opera As the World Turns. She was portrayed by Terri Conn from August 29, 1998 to September 17, 2010. She was also portrayed by Cori Anne Hansen as a child, from 1989 to 1994. Conn, known as Terri Colombino during the majority of her years on the show, is considered to be one of the most popular young heroines to appear on ATWT in its final decade.