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Let’s Play D&D With ‘Guardians of the Galaxy’s Cosmo the Spacedog

3 Minute Read
May 10 2023

Make way for the goodest good girl in space – this week we’re playing Dungeons and Dragons with Cosmo the Spacedog!

Guardians of the Galaxy Vol. 3 brought a new member to the team in the goodest girl in all of space, Cosmo the Spacedog! If you’re not very familiar with Cosmo, their backstory, or their background in the comics, Mars has you covered with an explainer over here. And now that we all have the basics covered, I think we can all agree that every D&D party needs a good good girl in the mix. So this week, we’re playing D&D with…

Cosmo the Spacedog

via Marvel

Initially, I wanted to make a player character for Cosmo. But this is a tricky one. There aren’t any dogfolk species in D&D 5E without digging through some homebrew. I considered making a Leonin character and switching some things around for flavor, but it wasn’t even the only block I stumbled on.

What class would Cosmo be? Psychic powers or Psionics are the crux of her powers, but Psionics still only exist in a limited way in 5E. There are a few feats and a couple of UA subclasses, but nothing has made its way into the official books yet.

So I decided to go in a slightly different direction with this one and make an NPC or monster sheet for Cosmo. Yeah, I know they’re the goodest and not a monster, but sometimes friendly NPCs have sheets that look a lot like monsters.

via Marvel

To make Cosmo, there are really two things that are important to capture. First, this is first and foremost a dog. She’s a smart dog with a long lifespan who can stand up to some of the biggest baddies in the galaxy. But we’re still talking about a dog here. So I looked at the wolf monster sheet for some basics. Keen senses, Pack Tactics, and Bite are all quintessential dog behaviors. And Cosmo’s pack can be whoever she’s teamed up with; it doesn’t need to be other dogs or even other animals. And Bite, like unarmed attacks, should just be a given on some sheets.

After that, I wanted to focus on Cosmo’s psychic powers. And they’re basic, but they’re effective. Telepathy and Telekinesis are based on the feats. And it’s not unheard of for her to use her powers as a psychic blast attack or weapon, so I was sure to give Cosmo an Energy Blast as well.

via Marvel

In canon, Cosmo can hold her own in some pretty big fights, and I don’t know if this version necessarily could. But she would be a great NPC addition to your group. Whether that’s a temporary help or a more permeant team member can be up to your DM.


How would you make Cosmo the Spacedog for D&D? Did you see the latest Guardians of the Galaxy yet? What movie, show, comic, book, or game should we make sheets from next time? Let us know in the comments!

Happy Adventuring!

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