Klatak is a one-time villain from the Cartoon Network series, Teen Titans Go!, only appearing in the episode "The Mask". She is a very beautiful alien queen, who rules an alien society known as The Marshmuvian Empire. She has searched the universe for eons, in search of a king as beautiful as herself.
In "The Mask", Robin revealed to the world what he looks like without his mask. He was extremely beautiful and the other Titans became obsessed with looking at his beautiful face. Robin feared the outcome of showing everybody his beautiful face. His fears would soon come true when Earth would be visited by a giant alien spacecraft that appeared to be made out of amethyst soul crystals and emitted colorful disco lights.
The Titans went to the roof to see Klatak step out of the spaceship and introduce herself. Klatak said that she was a beautiful alien girl who was looking for a beautiful man to accompany her as the king to her queen on the throne of The Marshuvian Empire. That beautiful man was Robin and she attempted to kiss him and take him away.
The other Teen Titans were not going to allow their gorgeous leader to be taken away by some alien fashionista and they all attacked her. However, Klatak used her powers to form a diamond crystal shied, which blocked all of their attacks.
Robin decided it was time for him to finally give in and give himself up to her. However, he was only tricking her. Robin did a beautiful dance and overwhelmed Klatak with his beauty. Klatak was so blown away by his beauty, that her face started cracking apart and a bunch of beams of light started breaking out of her face, as though her beauty was being destroyed. Klatak backed away into the spaceship and flew away.
In the episode "Garage Sale", Klatak's spaceship made a brief background cameo, though Klatak herself did not fully appear onscreen. Her spaceship was shown, flying over the city and blasting lasers all over the place, along with other giant villains, such as The Smile Monster and Gizmo's giant robot. Due to an unrelated storyline, Klatak was briefly frozen and unfrozen in time, unbeknownst to herself.