Nell is an Orange StarCO. She is also the player's instructor in field training and assists the player in the Campain by giving hints and strategical advice. Her little sister Rachel takes Nell's place as the player's advisor in Advance Wars: Dual Strike. Nell attended military school with Grit and Max.
Nell looks like a typical womanly businesswoman. She has wavy blonde hair, violet eyes, pink lips and pale peach skin. She wears a bright purple business suit and bright purple heels. She also has a mole on the left side of her face, near her left eye.
Nell also has another outfit which is unlockable in Advance Wars: Dual Strike. Instead of wavy hair, her hair appears straighter. She wears a bright purple headband, gold earrings, a gold necklace and gold-colored strappy sandals. Also, instead of a bright purple business suit, she wears a bright purple dress with layered frills at the bottom. Despite all these changes, her facial features and skin color remain the same.