Miss Catherina is an average woman, dressed in a religious habit. She wears a black long dress with long sleeves, and a veil that covers her hair. She was also seen with a cross that doubled as a poison container.
Miss Catherina is deceitful as she attempted to fool Roronoa Zoro into thinking that she is a scared and powerless woman. She also welcomed the Straw Hat Pirates very cheerfully, only to betray them later, and attempt to get Monkey D. Luffy's Bounty.
Abilities and Powers
As a Baroque Works Bounty Hunter, Miss Catherina has some fighting skills. Miss Catherina works with her partner, Mr. Beans and their main style of fighting is fooling their opponents into thinking that they are powerless woman/kid. She is not very resistant as she fainted after Zoro hit her with the back of the blade.
Miss Catherina uses a disguised cross she calls "Kami no Gokago Metsubushi" (神のご加護目潰し? literally "God's Blinding Protection"; Gesundhit in the Viz manga, a corruption of "Gesundheit", German for "Health") which sprays smoke that blinds the opponent, allowing her to surprise her opponents and attack them. She first used it on Roronoa Zoro.
Miss Catherina also wields a katana that she uses to slash her opponents after she fooled/blinded them.
Whisky Peak Arc
Miss Catherina and the rest of the Bounty Hunters welcomed the Straw Hat Pirates upon their arrival to Cactus Island, and prepared a party for them. During the party, Miss Catherina along with other girls were love struck over Usopp's bragging.
After the name of the organization was discovered by Roronoa Zoro, Miss Catherina and the other bounty hunters fight him. On a roof, after Mr. Beans's knife has been knocked out by Zoro, she came to his aid pretending to ask for mercy. Then she attempted to use a surprise attack with her cross to blind Zoro and then slash him with her katana, but Zoro saw through the deception and knocked her out with the back of the blade.