Cosmo is a Russian Dog that was lost in space. It went through a layer of radioactive gamma rays, giving him telekinesis and the ability to speak. He is a Guardian of the Galaxy, but is currently in the Collector's ship and gives quests.
Throw me a bone: Find Cosmo's bone, only problem is, its on top of an Obsidian pillar.
Hello Comrade *gamertag*. Is good to be seeink you.
I am needink you to find my bone for me.
I will be payink you for you work.