- "We're not barbarians, after all. We've met, you know. Three months back at the ball King Chai threw when he welcomed Zerpen to Vallt."
"You'll excuse me if I choose not to remember."
- ―Gruppe and Galen Erso
Gruppe was a female Valltii who served as the chieftain on the planet Vallt after the death of King Chai shortly after the start of the Clone Wars in 22 BBY. She was a sturdy woman who was once seen wearing a brown uniform, nose pierced with a red stud, rings on her fingers, and her hair parted in the middle that was braided with colored yarn.
- Catalyst: A Rogue One Novel (First appearance)