Teiresias was a blind prophet who resided in Thebes. Oedipus consulted with him to gather information on the murder of Laius, but Teiresias vaguely advised him not to question him any further, that the truth will haunt him. Oedipus threatened Teiresias, however, and Teiresias revealed that Oedipus himself was the killer. Enraged at this notion, Oedipus blamed Creon for conspiring against him through Teiresias.
Teiresias later appeared in Anigone, where he warned Creon that leaving Polyneices's body unburied and leaving Antigone's body underground would lead to dire consequences. Creon heeded to his advice in fear, but by then it was too late; Antigone, Haemon, and Eurydice committed suicide.