Pretty Little Liars Wiki
Pretty Little Liars Wiki
Never trust a pretty girl with an ugly secret.
Seasonal Quote

Season 1 is the premiere, and first season of ABC Family series, Pretty Little Liars.


Rosewood is a perfect little town with a great many secrets, the ugliest of which belong to the four prettiest girls in town: Aria, Spencer, Hanna and Emily, friends whose darkest secrets are about to unravel. One year ago, Alison, the Queen Bee of the group, disappeared, and the girls stopped being each other's BFFs. Now they start getting messages from "A" saying things only Alison would know. "A" spills their secrets, watches their every move and makes some very scary threats. The girls reunite to discover what's going on: Is Alison back or is "A" someone else altogether? Share the mystery with the complete Season One of the enthralling new series based upon the New York Times bestselling series by Sara Shepard.


Spencer Hastings

Spencer is a perfectionist and straight-A student whose pressure to stand out in her overachieving family leaves her feeling alone...until she finds understanding in the unlikeliest of places - the arms of her sister's fiancé.

Emily Fields

Emily, an athlete trying to sort out her place in the world, finds herself drawn to her new neighbor, Maya(Lawson), a free spirit who recently moved into Alison's old house across the street.

Hanna Marin

Once-chubby Hanna has transformed herself into the current "It girl," but still battles the urge to binge. Shoplifting gives her a less-fattening thrill, but when she gets caught, the charges are dismissed only because her mother, Ashley(Leighton), takes matters into her own hands, eager to keep her own reputation and the image of her daughter untarnished.

Aria Montgomery

Artsy and electric Aria has just returned to town from a year in Europe and, while she tries to deny feeling hurt over her father Byron's (Lowe) indiscretion with one of his ex-students at the college, and keep her mom, Ella (Combs), from finding out, she can't ignore the intense chemistry with Ezra Fitz (Harding) - Aria's English teacher.


Main Cast

Recurring Cast

Add characters here when they have appeared in at least 3 episodes in the season.

Guest Cast

Add characters here when they have appeared in 2 episodes or less in the season.
See Also: Character Appearances



Image Title Original Airdate No. in series No. in season
1.png Pilot June 8, 2010 01 1.01
Four 16-year-old girls believe their secrets are safe forever after their friend mysteriously vanishes. But the truth may be only one text away.
2.png The Jenna Thing June 15, 2010 02 1.02
With the return of Jenna Marshall to Rosewood, the girls must face an unpleasant past as questions arise about Alison's death.
3.png To Kill a Mocking Girl June 22, 2010 03 1.03
Old and new relationships are examined as the girls try to pay tribute to Alison's memory. But with "A" taunting them every step of the way, can the girls leave the past behind?
4.png Can You Hear Me Now? June 29, 2010 04 1.04
The girls take matters into their own hands and try to put a stop to "A," but the girls' problems are far from over.
5.png Reality Bites Me July 6, 2010 05 1.05
Trying to ignore "A" backfired for the girls and now they must pay the penalty. Meanwhile, the girls must also deal with typical teenage drama—the boy kind.
6.png There's No Place Like Homecoming July 13, 2010 06 1.06
The homecoming dance is supposed to be a time for fun and making memories, but for four pretty little liars, disturbing secrets threaten to ruin their perfect night.
7.png The Homecoming Hangover July 20, 2010 07 1.07
After the homecoming dance, the girls try to sort out the devastation. Plus, "A" isn't the only one sending Aria texts.
8.png Please, Do Talk About Me When I'm Gone July 27, 2010 08 1.08
Last-minute preparations for Alison's memorial get derailed when her brother, Jason DiLaurentis arrives back in Rosewood.
9.png The Perfect Storm August 3, 2010 09 1.09
The girls are trapped at school as a bad storm brews, and tensions run high. Plus, Byron leans on Ashley for advice on parenting as his relationship with Ella takes a bad turn.
10.png Keep Your Friends Close August 10, 2010 10 1.10
The girls go "glamping" as A's threats escalate and the FBI arrives in Rosewood. But not even a mani/pedi can lift the girls' spirits when the evening takes a dangerous turn.


Image Title Original Airdate No. in series No. in season
11.png Moments Later January 3, 2011 11 1.11
Moments after Hanna is hit by a car, the girls' world is turned upside down. Meanwhile, the mysterious messages from "A" continue.
12.png Salt Meets Wound January 10, 2011 12 1.12
As the girls try their best to support Hanna as she returns from the hospital, everyone has their own "surprises" to deal with. Plus, Aria and Ezra suspect someone is on to them.
13.png Know Your Frenemies January 17, 2011 13 1.13
Aria and Ezra feel as if there may be no way out, Emily deals with opposition to her love life and "A" has Hanna jumping through old hoops. The girls get a little unexpected help.
14.png Careful What U Wish 4 January 24, 2011 14 1.14
The school dance-a-thon might give the girls more than sore feet. Plus, Aria's old babysitter, Simone, comes to visit, and sets her sights on Ezra.
15.png If At First You Don't Succeed, Lie, Lie Again January 31, 2011 15 1.15
Emily deals with a jealous teammate. Aria and Ezra plan their first date out in the open. Spencer turns to Ali's brother, Jason, for information.
16.png Je Suis une Amie February 7, 2011 16 1.16
At a crucial swim meet for the Rosewood Sharks, Emily and Paige are pitted against each other. Plus, Caleb calls in his favor with a guilty Hanna.
17.png The New Normal February 14, 2011 17 1.17
It's parent-teacher conferences and one little liar's father sits face to face with the love of her life. Better believe that "A" has something to say about it.
18.png The Badass Seed February 21, 2011 18 1.18
As tensions rise, the girls ponder the true nature of evil. Plus, Aria views the school play as an opportunity to get closer to Ezra, but will her plan backfire?
19.png A Person of Interest February 28, 2011 19 1.19
After a shocking revelation from the police, it looks like the four little liars could be crying wolf. With everything pointing to Ian, could the girls be wrong?
20.png Someone to Watch Over Me March 7, 2011 20 1.20
As the heat is turned up on suspicions surrounding Spencer, the girls must come to the harsh realization that they aren't the only ones hiding secrets in Rosewood.
21.png Monsters in the End March 14, 2011 21 1.21
Everyone has something to hide. For Aria, Emily, Hanna and Spencer, keeping things hidden is second nature, but having to live with those secrets can become a big burden.
22.png For Whom the Bell Tolls March 21, 2011 22 1.22
The girls go to an unlikely source for help to put an end to "A" and the mystery surrounding their friend. Can they really stop "A" once and for all?



  1. Sasha Pieterse is initially credited as a guest star in "Pilot" but was promoted to a series regular in "The Jenna Thing".
  2. Peeples is initially credited as a series regular in "Pilot" but was demoted to a guest star in subsequent episodes.