Carolina

Carolina is a character, portrayed by Carolina Kostner, who appears in the Winx on Ice show. She's a normal girl at first, but she is turned into a witch by the Trix.

Overview
She steals a magic diary, and writes that she dreams a world where the magic of poetry is not a strange thing. She is transported to Alfea as the new student. She later meets the Trix, who turn her into a witch. Carolina accomplishes 3 spells against the Winx, but later realizes that she is becoming a witch. In the end, she writes the spell to defeat of Valtor and the Trix. The current location of Carolina is unknown, so she maybe leaves Alfea and returns back home.