Eymo is an alien creature who is Anemon's partner and best friend. He resembles a small orange fish, but has a large eyeball-like appendage that can be used as an eye by other creatures.
Eymo found Anemon shortly after Anemon crashed on Eymo's planet, having been blinded when he escaped from Krang. The two formed a symbiotic relationship - Eymo allowed Anemon to see and kept him from giving in to his despair, while Anemon's great strength kept Eymo safe from the cloud-beasts that tried to eat him.
He helped Anemon serve as a witness in Krang's war crimes trial.