Hermogenes

Hermogenes is a character in Thermae Romae.

Overview
Hermogenes was a physician known as Hermogenes the Greek. He was accompanying Hadrian on all of his travels. When Hadrian got sick, he asked Hermogenes to mix him a poison. As Hermogenes couldn't disobey a direct order, he made the poison, but drank it himself, so that he don't give it to the emperor.