Here are several examples of racism from To Kill a Mockingbird:
Bob Ewell. Bob refers to Tom Robinson as "that black nigger yonder" on the witness stand, and calls Atticus a "nigger-lovin' bastard" after spitting in his face.
Mayella Ewell. When Mayella requests Tom's help to "bust up this chiffarobe," she calls out: "I said come here, nigger." According to Tom, Mayella told him:
"... she never kissed a grown man before an' she might as well kiss a nigger." (Chapter 19)
Nathan Radley. According to Miss Stephanie, Nathan claims to have scared the intruder on his property "pale."
"Says if anybody sees a white nigger around, that's the one." (Chapter 6)
Horace Gilmer. The prosecutor in the Tom Robinson trial repeatedly addresses Tom as "boy."
Lula. Showing that Negroes can be racists, too, Lula tries to prevent Cal from "bringin' white chillun to nigger church."
Cousin Francis. Scout's cousin calls both Atticus and Scout a "nigger-lover."
Mrs. Merriweather. "The most devout lady in Maycomb," Mrs. Grace Merriweather refers to her maid, Sophy, and Tom Robinson as a "darky."
Scout. Scout uses the "N" word herself until Atticus directs her to stop saying it because it is "common." Scout brandishes the word more out of childish immaturity than racism, however.
The Jury. Tom is found guilty because of the jury's preordained belief to never accept the word of a black man over the word of a white man.
The Courtroom. Only white people can sit in the main section of the courtroom; blacks must sit in the balcony.
The Idler's Club. Its members prevent the black spectators from entering the courtroom until all of the white people are inside and seated.