Periwinkle "Peri" Fairywinkle-Cosma (born Poof) is the tetartagonist of The Fairly OddParents: A New Wish alongside his parents Cosmo and Wanda and one of the main characters on the show. He was one of Timmy, and Chloe's fairy godparents alongside his mom, Wanda, and his dad, Cosmo. Unlike his parents, Peri presents a smooth, charismatic personality. He is also, at times, neurotic and impatient with spoiled wishes. Eric Bauza voices Peri in A New Wish.

Peri made a big return in A New Wish, after being absent in Fairly Odder, starting in the episode "Lost and Founder's Day", with him being now an adult, going by the name "Peri", and serving the role of Dev Dimmadome's godparent.