The oldest daughter of the Nohrian royal family, Camilla's most notable trait is her strong motherly instincts, ones that are very specifically directed towards her adoptive sibling, Corrin.  Camilla's fawning is not entirely reserved for Corrin alone; she is known to treat her younger siblings like children, referring to Leo as her "Baby Brother".

Camilla adopts a completely different persona when she interacts with others, where she is portrayed as a figure of maturity and elegance.  Camilla is also ruthless and bloodthirsty on the battlefield, deriving disturbing joy from striking down her enemies with wild abandon.

(As cliche as it sounds, the main thing we're looking for with Camilla is someone who can easily sound sultry and seductive, as these are defining parts of her character. She is also extremely affectionate and mother-ly towards her younger siblings, which can make them embarrassed whilst interacting with her.)