She is voiced by Jessie Lambotte in the French Version and Sabrina Glow for Season 4 in the English version.
She is a small dog-like creature with light brown and gray eyes.
Like all kwamis, Barkk can fly, levitate, phase through solid objects, and carry things that are bigger than her.
Barkk can transform the holder of her Miraculous into a dog-themed superhero by going inside their Miraculous.
As a kwami, Barkk gives the wearer the power of and transforms them into a dog-themed superhero by entering the Dog Miraculous. Although unable to communicate to the wearer while they are transformed, Barkk usually knows what is going on during that time. Whenever the wearer uses Unknown powers, Barkk begins losing power and eventually can't retain the transformation any longer, leaving the collar necklace and reverting the wearer back to normal. Barkk is exhausted and out of energy afterwards, so to be able to transform the wearer again, she must refuel by eating food.
Thousands of years prior to the series, Barkk and the other Kwamis traveled the universe, unable to interact with any creatures, particularly humans. This was until a mage forged the Miraculouses, so Barkk and the others could both interact with mankind and grant them the ability to transform into heroes; Barkk and the Dog Miraculous able to give a person the ability to grant other people superpowers.
- On the French Calendar of Miraculous, it's confirmed that Sabrina will have Dog Miraculous, it is wasn't confirmed until French Calendar and it was a popular theory for fans.