Gwen is a goth girl whose interests lie in art and astronomy. She is smart, independent, and level-headed, stating her best quality is her inability to get excited over minuscule things. Her attitude at first seems cold and harsh, but she is not a bitter person, rather cautious of whom she lets into her life. Beneath her tough exterior is a kind heart that learns to trust as the series progresses, Gwen's guard lowering with each season. Despite her distaste for whatever "the sheep" are fond of, she actually does desire to be welcomed by the popular crowd. As revealed in Trial by Tri-Armed Triathlon, she distances herself from it because she believes it is not where she belongs. She isn't afraid to stand her ground should her reputationtake a hit. Gwen also suffers from claustrophobia, as seen in Phobia Factor and The Treasure Island of Dr. McLean. She believes strongly in karma, and is also a huge fan of horror movies, the clichés of which will sometimes dictate how she performs in challenges.
- In Pooh's Adventures of Total Drama Island, Pooh and pals join Gwen's team in order to help her win the million dollars.
- Gwen might make her first guest appearance in a Lion King crossover film in the remake version of Timon and Pumbaa's World of Color.
- She will rekindle her romantic relationship with Trent later after Total Drama All-Stars.