This work analyzes the way in which intellectually disabled character-narrators in fiction are used and dealt with. The four fictional autobiographies selected are the following: William Faulkner's The Sound and the Fury (1929), Daniel Keyes' Flowers for Algernon (1959), Winston Groom's Forrest Gump (1986), and finally Mark Haddon's The Curious Incident of the Dog in the Night-Time (2003).