Source: reddit.com

7. Cosmo

Cosmo was, yes, in a Marvel movie, but I still think he deserves a space (PUN) on this list.

Because, you see, while the Cosmo that popped up in Guardians of the Galaxy was just a cosmonaut dog, comic book Cosmo is a TELEPATHIC Cosmonaut Space Dog.

Cosmo was a test animal for the Soviet Space Program who found his way to the the giant space head known as Knowhere, somehow became telepathic, and became security chief. The most adorable security chief in the whole darn station; yes, he is! Now he tends to bounce around space helping people and being grumpy about things. All while being the bestest dog that thinks with a vague Russian accent.

Cosmo's brief appearance in Guardians of the Galaxy made me squeal with joy in the theatre. I only wish he would have been his telepathic comic book self, but hey, you can't have everything. And the fact that we got a cosmonaut space dog in a major studio film is an incredibly amazing feat.