Odo is a character in the Star Trek: Deep Space Nine. He is a Changeling, a shape shifting species who can take any corporeal form at will. Their natural state is a form of viscous liquid, which they must return to every sixteen hours in order to regenerate. Odo is head of security for the spaceship Terok Nor. He is a fair, firm and serious man with a deep sense of social justice. He is driven by the need to do what is right for others, and as a result, is a well respected by all. Odo is played by René Auberjonois.