Sierra

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

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 of the series and has been shown following them around. She is briefly seen during the report about Bridgette and Geoff's relationship problems, where she is seen getting her stomach signed by Geoff. Her cover is blown by Izzy in an interview, who reveals that she has been feeding Sierra this information so that she could 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 exit the bus, running out 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. Heather expresses interest in starting an alliance with Sierra in this episode. While waiting to arrive 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 Fool. 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".



In Walk Like An Egyptian - Part 2, Sierra tells Izzy that Duncan and Courtney their fans will be disappointed on her blogs, but she and Owen have a chance of becoming the Total Drama power couple. Then, Sierra tell Izzy that Cody is hotter than Owen and he still sleeps with a stuffed emu. Sierra then rants about how Alejandro is not hot and sees the other girls as crazy for liking him. She goes through with Alejandro's plan on the goat. When she reaches the Nile, she tells everyone she's a fourth generation basket weaver which she is quick to build half of Teams Chris Is Really Really Really Really Hot's raft. Then, she and Izzy switches teams due to her wanting to be close to Cody. She then quickly builds Team Amazon's raft and manage to get help try to get the camel on. Once Team Amazon get's their camel onto their raft, they proceed to go across the Nile. Sierra and the rest of Team Amazon are the first to cross the finish line with the item they are supposed to bring, thereby escaping elimination.

Trivia

 * 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, and both of their names are hispanic. Alejandro's meaning "Alexander" and Sierra's meaning "hacksaw" or "chain of mountains".
 * Sierra's favorite cast member is Cody, as well as her crush. Sierra also may have a crush on Chris, judging by the name she choose for her 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, due to the others being unagreeable about a team name.
 * Sierra is the first person Heather has tried to manipulate into an alliance with her in Total Drama World Tour.


 * Sierra is the first contestant to use 'text slang' in Total Drama World Tour.
 * Sierra is a fourth generation expert basket weaver.
 * Sierra is the second character in the Total Drama series to switch teams with Izzy, the first was Katie.
 * She is the only female contestant to compete in Total Drama World Tour not to compete in Total Drama Action.