20 Past MCU Easter Eggs That Will Mean Something In Phase 3

13. Cosmo (Guardians Of The Galaxy)

During the scene on Knowhere when the titular heroes met up with the Collector in his museum in Guardians Of The Galaxy, one of the Collector's exhibits was a dog wearing a spacesuit. The dog was later seen, having escaped its cage when the place was destroyed by the Orb, licking the Collector's face in the post-credits scene with Howard the Duck, and you can certainly expect him to play a bigger part in the sequel. You see, that dog was Cosmo - a Russian space dog with telepathic powers from the comic books, the security chief on Knowhere and, importantly, who has been a full-blown member of the Guardians Of TheGalaxy. Now that he's been released from his captivity, he will surely be more prominent as a character in Guardians Of The Galaxy 2.