Marilyn is a rather chubby woman with dark brown curly hair. Part of her hair is put up like antennae like other Skypiean people. She wears a dark purple dress, with a black belt. She also wears dark red lipstick.
She appears to be a kind woman, and a fun loving person, as she danced with Sanji at a party.
Forty-two years ago, she became Miss Skypiea.
After the Straw Hat Pirates defeated Enel, they threw a party. Marilyn went to the party and celebrated the Straw Hat Pirates' victory. She danced with Sanji while partying.