Thalia is a half-witch, half-human hybrid, and possesses unique powers, including the ability to cast powerful spells, use magic, communicate with animals, and control time and space. In addition to her magical powers, she also exhibits the traits and abilities of her parents, such as Jughead's intelligence, quick wit, and investigative skills, as well as Sabrina's kindness and compassionate nature.
Thalia is a loyal and supportive friend, always ready to help those in need. She is particularly close to her childhood friends, like Ben Cooper, but she also has a close bond with her family and allies, including Archie Andrews, Betty Cooper, Veronica Lodge, Reggie Mantle, Dilton Doiley, and Cheryl Blossom.
Thalia's character has become increasingly prominent and popular in the Archie Comics universe, playing significant roles in various storylines and crossovers. She is an important addition to the Archie Comics family and has resonated with readers due to her unique blend of magic, humour, and relatable personality traits.