In literature, the tritagonist (from , tritagōnistḗs, third actor) is the third most important character of a narrative, after the protagonist and deuteragonist. In Ancient Greek drama, the tritagonist was the third member of the acting troupe.

In literature, the tritagonist (from , tritagōnistḗs, third actor) is the third most important character of a narrative, after the protagonist and deuteragonist. In Ancient Greek drama, the tritagonist was the third member of the acting troupe.