Kyro

Young Kairo is Green Lantern's Venusian helper and friend, who follows Hal Jordan (who he refers to as "Boss") across the galaxy assisting him in any way he could, despite having no powers of his own.

He met Jordan during one of his adventures, and is one of the few people on Earth to know his dual identity. Something of a mechanic, he helps repair a number of Jordan's devices like his plane, and on one occasion fixed his lantern battery by hitting it. He has no way of maneuvering through space on his own, so he rides on Jordan's back through the cosmos.