The Kankers debuted in the second episode, "Nagged to Ed," where they found the Eds in the woods on a hunt for bugs (at Edd's behest).
Additionally, in "O-Ed Eleven," it was revealed that Eddy's Brother's treasure map led to their trailer, making their presence in the neighborhood even more of a mystery.
In the cartoon itself, however, their origin and how they came to Peach Creek has never been explained.
In their first appearance, the Kankers say that they're new in town.
Nyx - the Greek goddess of night, this doesn't need a nn Aetheria -Thea Eris - Greek goddess of discord (you could look up some other "dark" goddesses) Elena/Olena - Lena Ravenna - Ena Octavia - Tavy, Tav Iris Aisa Sorry some of these don't have a nickname but you can come up with one if you really need it.
Let’s face it, not all pups have a warm and fluffy personality.
The first time they were seen in Season 2 was in "Know it All Ed," when they wrecked Eddy's Western-themed scam and bullied several of the kids.