The Erkush was an animal that naturally lived on the planet Kalee. The indigenous Kaleesh species fashioned masks from the bones of these creatures. Dok-Ondar possessed one of these masks.
The existence of Erkush was initially revealed within Dok-Ondar's Den of Antiquities. This shop is located in the Star Wars: Galaxy's Edge area of theme parks. This land was unveiled to visitors at both Disneyland Park and Disney's Hollywood Studios during the year 2019. The Erkush has roots in the Star Wars Legends storyline, first appearing in Crosscurrent. This novel was authored by Paul S. Kemp and made available on January 26, 2010.