Gwen is the loner on the island. Gwen has a Mom and a little brother.
Her friends are Duncan, Leshawna, Heather, Trent, Cody, Owen, Bridgette, Geoff and DJ

Gwen's first relationship was with Trent. They were put on the same team.In Search and Do not Destroy, Gwen kissed Trent for the first (and last) time. Heather saw them kiss and sabotaged them.In the end Gwen and Trent made up. Gwen was really sad about Trent getting voted out instead of Heather. In the next episode Gwen says that she already misses Trent. They were looking for the million together in the hour special. In total drama action, they were dating. Trent noticed that Duncan and Gwen getting closer. He tried to let her win so she wouldnt try and run away from him. Owen told him that she might be avoiding Trent so she could win the challenge. In 3:10 to crazy town Gwen broke up with him for throwing challenges.

Gwen's second relationship was with Duncan. They became friends in Hook Line Screamer when they both showed liking in horror movies. They started hanging out more in TDA. That made Trent and Courtney jealous. They would always say that they're just friends. When Gwen was voted off in the Chefstank Redemption Gwen wished Duncan good luck after he almost sacrificed himself. In the Aftermath For-Gwen and Forget Goeff showed a never before seen clip where Duncan Ended up on top of Gwen. In TDWT, Duncan made a joke about Heather's response to Gwen. Gwen snickered and smiled at Duncan, then Duncan smiled back.When Duncan came back in London Gwen and Duncan kissed. In the next episode everyone finds out about about the kiss. In the Ex-files and the polish scene they kiss for the 2ND and 3rd time.

Gwen's enemies are Courtney, Sierra, Justin and Chris

In America Gwen didn't get the money since Lindsay and Izzy used brownies to lure Owen to win
In the Alternate ending After Owen knocks her down, Trent walks over and encourages Gwen to get up, saying that she shouldn't lose this thing because she is angry. They stare at each other for a while and Gwen finally smiles while Trent helps her up. They continue to stare at each other until she hears Owen say "Ooh brownies I'm coming to get you!" She then says she will never win, but Trent tells her to run. Owen's side begins to cheer as Owen makes it to the finish line. As Izzy was outside the finish line, Owen ran into her and stopped there, allowing Gwen to pass him and win Total Drama Island.

In TDA Gwen begins to throw challenges for the Killer Grips throughout the prison challenge. Heather was suspicious about her and keeps accusing Gwen of trying to make their team lose.As it was down between Gwen and Heather for the final Gilded Chris Award, Heather gets the trophy and heads up to the podium to tell everyone what a loser Gwen was. She was voted off by everyone but Duncan and DJ.

In TDWT everyone had a grudge against Gwen for kissing Duncan. Courtney wanted Gwen gone so she convinced Heather to vote for Gwen. Heather said she had he fingers crossed. Gwen and Cody ask Heather to vote off Courtney and cuts Gwen off saying shes in the alliance. Snce throughout the episode Cody was torturing Duncan, He got revenge. He threw Cody the Dingo. In the elimination, Gwen ties with Courtney and the two are forced into a tie-breaker challenge where they have to feed two starving koalas without using their hands. Unfortunately, Gwen is allergic to eucalyptus and her face immediately begins to puff up. he walks towards the entrance as she insults Courtney and falls from the plane in mid-insult, before being able to put on her parachute.