- "Four hundred craft incoming on our starboard-aft quarter, moving on attack vectors. Identification: vulture droids."
- ―Hammerly reports the situation during the battle of Umbara
Hammerly was a human female who served as an officer of 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, now a commodore, for a second time aboard the Imperial I-class Star Destroyer 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