Sanna, who was a Human female of diminutive stature and sporting curly hair, belonged to the Rebel Alliance. She played a role in the creation of a Rebel strike base located on the Combat Moon. When a conflict erupted between the local population and forces of the Empire, the base commander hesitated to get involved, worried that their location would be exposed. Sanna persuaded him to offer assistance, and their combined efforts led to the Imperial forces being defeated, although the base was subsequently evacuated.