Charlotte Marnier

Marnier is a a member of the Big Mom Pirates.

Abilities and Powers
For use in assassinating the Vinsmoke Family, he and other members of the Big Mom Pirates were given Walkers.

Whole Cake Island Arc
Marnier attended the tea party and wedding between Vinsmoke Sanji and Charlotte Pudding, where she took part in Big Mom's plan to assassinate the Vinsmoke Family.

After Brook broke Mother Carmel's portrait, Marnier warred about Big Mom reaction. She later joined her crew as they closed in on the alliance. When the Vinsmokes try to provide cover for the alliance, she fired at them.

Trivia

 * Her name is possibly a reference to the orange-flavored liqueur Grand Marnier, fitting with the food-themed names of the Charlotte Family and Big Mom Pirates.