In Epic: The Musical, Tiresias is a wise and mysterious prophet with the ability to see the future, despite being blind. His gift allows him to offer important advice to the heroes, but it also comes with a heavy burden, as he can foresee events but cannot change them.

Tiresias speaks in riddles and cryptic phrases, challenging others to think deeply about their choices. Though blind, his wisdom and connection to the divine give him insight that others lack. He helps guide characters like Odysseus, warning them of the consequences of their actions.

In the musical, Tiresias explores the idea of fate versus free will, showing that while the future may be written, it is always changing. His role is key to the story, as he helps steer the characters toward their destiny, even as they struggle with it.