Hammerly was a human female who served as an officer in the Imperial Navy in the years before the Galactic Civil War. She served under Commander Thrawn aboard the starship Thunder Wasp during the battle over Umbara as a senior lieutenant. Hammerly was eventually promoted to the rank of commander and served under Thrawn for a second time aboard the ISD Chimaera.
- Thrawn (First appearance, simultaneous with Thrawn audiobook)
- Thrawn audiobook (First appearance, simultaneous with Thrawn)
- Thrawn: Alliances
- Thrawn: Alliances audiobook
- Thrawn: Treason
- Thrawn: Treason audiobook