Jenna Marshall is a fictional character created by I. Marlene King for the Freeform television series Pretty Little Liars and portrayed by Tammin Sursok.
However, they maintained a friendship since during the seventh season, both return to Rosewood in attempt to steal Charlotte's money to pay another eye surgery for Jenna.
Jenna was often the target of Alison and her crew, with jokes about her likeness to Snow White and pranks such as giving her apples dipped in toilet water.
By the time the second "A" wreaks significant havoc in the girls' lives, it becomes clear to Aria that Jenna knows vital information about the culprit.
As the Liars put the pieces together, they realize that Marshall had been paying Caleb to spy on Hanna and look for a key in her house that she thought Ali had given to one of the girls.
Officer Garrett Reynolds, who had reassured Emily that he was on the Liars' side, then shows up in Marshall's room, and the two share a kiss, revealing they're in a relationship.
Later, at school, she approaches the Liars at their lunch table and apologizes for gaining a hatred towards them, saying that when Hanna's actions made her realize that people are capable of changing.
In "Crazy", CeCe Drake prank dials Jenna and warns her not to date Nate St. Germain (whom she was flirting with at the time) in an attempt to bring him closer to Emily.
In "Single Fright Female", Nate discovers Marshall had been faking her blindness for a while and calls her out for acting like she can't see him.
After seeing that she has company, Jenna just warns Fields to be very careful with whom she spends time and is seen getting into a cab and potentially leaving town since the driver was placing luggage in the trunk.
A video recorder suddenly plays the incident where Hanna's mom ran over Wilden, but this time they see that afterwards, Marshall and Shana rushed over to his body and dragged him away.
During the fourth season's premiere, "'A' Is for A-l-i-v-e", Mona confirms that Jenna and Shana knew each other before coming to Rosewood, and further claims Marshall feared Melissa.
Later on the episode, Driscoll reveals to Emily that she met Jenna when she volunteered at a school for the visually impaired and have remained friends ever since the day Alison visited Marshall to threaten her.
In "Game Over, Charles", Jenna made a brief cameo during a flashback, as the Liars were exiting the church after Wilden's funeral and watching the woman in a black veil entering a limo.
Marshall remains around Rosewood in "Along Comes Mary" and befriends Sara Harvey, which troubles the Liars after Emily spots the two women amicably hanging out at the Rear Window Brew.
At the end of the episode, she and Sara are having drinks at The Radley when an unknown figure approaches the two and reveals themselves to be Noel Kahn, who proceeds to join the duo.
When confronted by Emily in regards to her involvement with Archer during "Wanted: Dead or Alive", Jenna admits she befriended Charlotte DiLaurentis after reading about her stay at Welby and reached out.
Dunhill's plan was to purposely introduce himself to Alison under the "Elliott Rollins" pseudonym and later take advantage of her good intentions to benefit Charlotte's eventual release from Welby.
During "Original G'A'ngsters", the Liars witness Jenna mourn Sara's death after a team of paramedics arrive at The Radley to transport her body for further examination.
Later, Spencer and Hanna manage to break into Jenna's room at The Radley with Caleb's aid, who disguised himself as a massager in order to steal from Marshall's bag the key that opens the mysterious box located under her bed.
In "The DArkest Knight", Mona and Caleb manage to bug Jenna's cellphone and eavesdrop a voice message she left for Noel after he failed to return any of her calls.
Once Hanna successfully fabricates a story to the police on how she went to Hollybrook to track down the girl Kahn pushed down a flight of stairs at a frat party, Mona purposely bumps into Marshall at The Radley.
Once they arrive at the location, the Liars make their way inside an abandoned school for blind students where they're held hostage by Noel and Jenna, with the later tracking them down at gunpoint.
During "These Boots Were Made for Stalking", Jenna walks into the police station in order to come clean about her actions and interrupts a conversation between Spencer and detective Marco Furey.
In an attempt to spare her life, Marshall brought a gun to the deserted sight school as an act of self-defense and pretended to hold a grudge against the Liars.
A faint beeping is heard from across the café and the recipient is revealed to be Addison Derringer, a local Rosewood High student whom Emily has disciplinary issues with.
Once Marshall's clique heads inside the building, Caleb engages in a face-off with Jenna in order to buy Hanna sufficient time to sneak into the cobbler's office to regain her shoes.
Sydney currently resides in a loft at Fishtown, Philadelphia, whilst working as a bank teller at a private department that services extremely wealthy clients.
The girls also learn that Sydney checked into a charity gala for the Manhattan Children's Hospital, the same ball where Katherine made an appearance wearing Hanna's dress.
Following this enlightenment, Emily googles the event and comes across a picture of Daly posing on a red carpet whilst Driscoll sneakily uses a phone to photograph her dress.