This article is a study to classify the epithets referring to the characters in four Thai poetic works. The study results revealed that there are two groups of epithets to be found. The first one is epithets to praise characters by referring to their valuable entities, their dignity and their beauty. The second one is epithets to inveigh against characters. These epithets focus on the characters’ ethnicity, negative characteristics, ugly physical appearance, and worthless elements. The use of epithets is the poet’s strategy to express meaning and emotion in their poetic works. Moreover, the use of epithets through various words makes the literature more colorful and enhances emotional feelings in the readers.