A member of the once prominent Ronah family, she assists the Crossbone Vanguard space pirates after the fall of Cosmo Babylonia. Sherry is a Newtype supremacist, and lectures Tobia Arronax on how Newtypes would inherit the future and how he should distance himself from Oldtypes. She attempted to make Tobia stay with her to make him a genuine newtype, much to Tobia's dismay. Eventually after her attempt to keep him on her ship, he escaped and took the Crossbone Gundam X-3 with him.
- Sherry Ronah is briefly mentioned in the Mobile Suit Gundam F91 novelization.