Tsunami Wyverns are gigantic dragons that live near the ocean. These wyverns can create deadly tsunamis by vigorously flapping their wings directly above the water. They create these waves to catch the eye of potential mates or as a form of self defense, as they are hunted for their beautiful skin. A Tsunami Wyvern’s wings are also helpful in gliding over the ocean without expending much energy. Their colors make it easy for them to blend in with the ocean water, which can be useful while stalking prey. Using their rudder-like tails and webbed feet to dive deep into the water, they can easily catch and eat their fill of big fish. Tsunami Wyverns can be found mostly near island chains.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

An espionage agent for the Separators; one who knows it all and is never spotted; always searching for a way to take GLaDOS down. These are all of the things Wheatley is not known for. Preferring to spend his time telling Autumn, Rick, Space, and Curiosity of his time in the Aperture Canyons (Although the other three Cores were also there) he spins a tale of how he managed to defeat GLaDOS, taking control on the Canyons. He then explains how a little, brain-damaged, mute dragon went ballistic, calling him names and other things. When Rick asks him how a mute dragon could call him names, he usually just stands there in silence. The truth is, Wheatley is terrified of Aperture Canyons--and of the psycotic dragon, GLaDOS, who resides there--after what happened with that whole space incident...

Wheatley has a bit of a soft spot for Autumn, co-leader of Team Cydragon, after the Spitfire rescued him from falling to his death, catching him in midair and bringing him back to her home.