|Relationship|| Travis (broken up)|
Smithy (broken up)
Charlie (broken up)
|Nicknames|| Jen (Everyone)|
Gym Sock (Ron)
Masterson (Coach Halder)
|First Appearance||Take This Job and Squeeze It|
|Last Appearance||Bye Bye Nikki|
|Voiced by||Megan Fahlenbock|
Jennifer Anne "Jen" Masterson (Julie Maréchal in the French dub) is a fictional character in the animated Canadian sitcom 6teen. She is voiced by Megan Fahlenbock.
Already a part of her circle of friends in the episode "Take this Job and Squeeze It", Jen is introduced in 6teen as a responsible individual, born into a family in the shadow of her more glamorous and popular older sister, Courtney, and the prospect of taking on additional siblings. Some time before the series started after Christmas, her parents get divorced and Jen takes it harshly.
When Jonesy's dad and Jen's mom start dating, Jen has a hard time with it. During preparations for the wedding, Jen has a difficult time getting used to the idea of having brothers. Jen and Courtney start a war with the three Garcia brothers that interferes with the wedding and their parents almost cancel it. However, after realizing that they want their parents happy, they agree with some ground rules that they can all live by, and Jen and Jonesy officially become siblings. Halfway through the show, Jen's mother becomes pregnant. Jen is the last to know since Jen's mother wanted to wait for the right moment to tell her (and Jen just admitted that she couldn't stand another sibling). When Jen finds out, she almost has a nervous breakdown and freaks that it may be a boy. Luckily for her, she finds out that the new addition will be a girl.
Despite her initial feelings of jealousy toward Courtney, Jen shares a respectful relationship with her sister. She originally believed that their parents favored Courtney because she was attending university, but the two came to a mutual appreciation of each others' strengths following her sister's confession that she had been kicked out of school, and that their parents constantly encouraged her to develop a work ethic like Jen's.
Jen has had several romantic interests over the course of the series. Notable crushes include Charlie Dobbs, one of her co-workers who she dumped after becoming paranoid over his appearance (and doing all of his push-ups for him), and Corey Halder, her boss' son, an avid sports fan who she broke up with on account of his self-absorbed mannerisms. In "The Five Finger Discount," Jen steals an expensive jacket to impress a boy named Carson, and in the episode "Waiting to Ex-Sale," she flirts with Owen while waiting in line outside the Albatross & Finch clothing outlet. In addition, Jude Lizowski acted as her fake boyfriend during her infatuation with Charlie Dobbs. She had a relationship with Smithy (Jonesy's doppelgänger) in Doppelgängers. Jen also had a crush on Jane, the Penalty Box's temporary replacement for Coach Halder.
Jen is employed in the Galleria Shopping Mall as a sales associate ("assistant coach") at the Penalty Box sporting goods retail chain. She previously worked at The Big Squeeze lemonade stand to gain experience needed to be considered for her job at the Penalty Box, as well as pay for the damages she caused while driving her soccer team's bus underage. Often, Jen finds herself in the store's physical penalty box for disobeying orders or causing problems. She was also thrice on probation for folding clothes rather than hanging them up, taking a day off to visit the mall's amusement park, and playing pranks on her boss. Jen aspires to either participate in snowboarding events for the Olympics during college, or begin her own line of snowboarding gear.
Jen is responsible, admirable, and committed. She enjoys sports, shopping, fantasizing about boys, and planning for the future, but is also prone to nosiness and has a quick temper, traits which have led her friends to regard her as a control freak. These traits suggest that Jen has a Type A personality.
- She and Caitlin are the only ones in the group to never get fired.
- She is the tallest female in the group.
- Jen's a fan of the popular boy band DawgToy, and her favorite member is Jason, who she claims "even feels cute".
- Jen's highly allergic to mushrooms; eating them results in her becoming violently gassy and suffering from diarrhea.
- Jen, as a child, liked to run around naked in her backyard (which explains why Courtney nicknamed her "Flash").
- Jen has unintentionally flashed her breasts in front of her entire group of friends on two separate occasions, and has been seen nude on two other occasions by Jonesy.
- Jen's voice actor, Megan Fahlenbock, has also voiced Gwen from the Total Drama Series and Sam McCloud, one of the main characters' sisters, from Stoked. Jen and Gwen are very different, even though they share the same voice actor.
- Jen has the highest sales rate of all the Penalty Box Employees.
- Jen's Total Drama Island counterpart is Courtney as they are both "Type A" students and are generally very ambitious and competitive. Coincidentally, Jen's older sister is named Courtney. Jen's TD counterpart is also more geared towards Bridgette as they are both normally kind-hearted, are mediators, and are also athletically active (Jen's snowboarding to Bridgette's surfing).
- Jen lives with Jonesy after Jonesy's dad and Jen's mom become married.
- Jen's ethnicity is Irish Canadian.
- Jen's Stoked counterpart is Emma, which is also the same first name of her mother and baby half-sister from her mom's second marriage to Jonesy's dad.
- Jen was taught yoga by Starr.
- In "The Journal", Jen loses her journal and is made deeply unhappy when the whole mall finds out about her private thoughts. Ironically, she is always the first one to pry into others lives; for instance, in "One Quiet Day" she spends a lot of time trying to find out why Jude isn't stressing over finals, and in "Deadbeat Poets Society", she looks into why Wyatt has relaxed. In the latter case, she doesn't even ask what's going on with Wyatt, and doesn't respect his wishes that she'll leave him alone when she finds out.
- Jen had harbored a crush on Jonesy Garcia in the seventh grade, but confessed that she is completely over it.
- This was proved in "The New Jonesy".
- Although it has not been explained what happened to her biological father, in "The Wedding Destroyers", Jen specifically says he's not around. While she does not say why he is gone, the subtext heavily suggests her father is deceased, but during the episode "Deck the Mall", Jude said it was "the first Christmas since the parental split". Also, in "It's Always Courtney, Courtney, Courtney!" Courtney mentions that Mom and Dad want her to be more responsible, like Jen. It is possible that her parents divorced and Jen's father died somehow shortly thereafter.
- Jen's name was mentioned on Total Drama Presents: The Ridonculous Race by MacArthur and was also revealed by MacArthur that she used to babysit MacArthur.