Sierra

Sierra, labeled The Obsessive Uber-Fan, is one of two newcomers, being one of the contestants on Total Drama World Tour. She is currently a member of Team Chris Is Really Really Really Really Hot.

Total Drama Action
Sierra, along with Alejandro makes her debut in Celebrity Manhunt's Total Drama Action Reunion Special where she flaunts her knowledge of the Total Drama series. She has created a blog for each and every cast member and has been shown following them around. Her cover is blown by Izzy in an interview, who reveals that she has been feeding Sierra this information so she can get the RCMP off her back. Sierra gets a small job interviewing the cast on the red carpet, but Blaineley thought her questions were boring. Sierra was the one to encourage the contestants that they are not has-beens and tells them to stop Chris from doing Total Drama Dirtbags. She ends the show saying she is a third-generation Chris McLean scholar and can tell whether he is lying or not by his vocal tone and body language. She also knows where Chris shops for his clothing and the name of his three dogs. With an interest to finally answer all the blog questions on Cody, she wonders about things like the type of deodorant he uses and what song he sings in the shower and says it will be a "six-month analysis." However, Sierra ends up making the camera run out of battery with her long confessional.

Total Drama World Tour
In Walk Like An Egyptian - Part 1, Sierra is the last person to arrive, running out of the bus and exclaiming that it's her "best day ever." Sierra then notices Cody and rushes over to know him better, but is quickly Interrupted by Chris. Inside the Total Drama Jumbo Jet, while Chris is explaining the rules of the competition, Sierra is shown to be one of the only people to be listening. While arriving in Egypt, Sierra states Cody's full name and reveals that he was born on April 1st. Sierra then attempts to flirt with Cody, saying that Cody is her own April's Fools. During the Come Fly With Us musical number, Sierra sings with Cody. In the "Pyramid Over Under" challenge, Sierra forms a team with Heather and Cody, going under the pyramid. In the pyramid, Sierra almost injures Heather and herself by stepping on a loose step and making arrows shoot out of the wall. The trio later runs into Izzy, dressed up as a mummy. Sierra is later put into "Team Two". While deciding on the team name, Sierra shows some attraction towards Chris, naming her team "Team Chris Is Really Really Really Really Hot".

Trivia

 * Sierra is one of the five contestants to only compete in one season. The others being Eva, Katie, Sadie, and Alejandro.
 * Sierra, along with Ezekiel and Alejandro, are one of the few contestants to use the confessional in a season that they did not participate in.
 * Sierra is currently the tallest female on the show, and the third tallest character overall (the first two being DJ and Geoff).
 * Sierra is the first and only contestant to make the camera in the confessional run out of battery.
 * Sierra is one of the two new coming contestants in Total Drama World Tour, the other being Alejandro.
 * Coincidentally, they both have dark skin and necklaces.
 * Sierra's favorite cast member is Cody.
 * Sierra is the only contestant to have purple hair, which makes her one of few contestants, the others being Duncan, Gwen and Lindsay not to have a primary hair color.
 * Sierra, along with Alejandro, Eva, and Sadie, have only been on one team.
 * Sierra created the team name of Team Chris Is Really Really Really Really Hot.
 * Sierra is the only contestant to choose the team name by herself.
 * Sierra is currently the only contestant to not have a conflict with any of the contestants.
 * Sierra is the first person Heather has tried to manipulate into an alliance in Total Drama World Tour.