28 years old, Sienna is of Spanish descent and has brown eyes and brown hair parted to one side, adorned with a deep red peony. She also wears a deep red blouse with yellow flower patterns and sports gold earrings. She is also seen wearing a necklace with a small ruby attached.
Formerly trained in the police academy, Sienna is known to be flirtatious and seductive, using her wiles to make her way in the world. She is known to be intelligent and tactical but also caring for those around her. Despite her distant demeanour, she is devoted to the Ravenedge Police Department.