How old the stars of 'Pretty Little Liars: Original Sin' are compared to their characters

Like the original series, "Pretty Little Liars: Original Girls" brings together five new teenage girls living in a small town — this time Millwood, not Rosewood — who have to band together to protect themselves from a stalker called A.

Imogen Adams, played by 22-year-old actor Bailee Madison, is the leader of the group and a pregnant high school student.

While Imogen's age is never stated, it is likely she is between the ages of 15 and 17 since she doesn't seem new to the school, nor does she talk about college or graduating.

Chandler Kinney is another 22 year old playing a high school student.

Kinney portrays Imogen's friend Tabitha "Tabby" Hayworthe, a horror film buff who works at her local theater.

It is likely she is the same age as Imogen due to their friendship.

Noa Olivar is a track runner who had to spend her summer in juvenile detention after committing a crime.

While Noa appears to be the same age as the other girls, the actor playing her, Maia Reficco, is 22 years old.

Malia Pyles plays Minnie "Mouse" Honrada, another high school student who spends a lot of time in the digital world after experiencing childhood trauma.

Pyles is also 22 years old but Mouse is between the ages of 15 and 17.

Zaria rounds out the group of girls as the ballerina Faran Bryant.

Although Faran is a high school student around the same age as the other girls, Zaria is 26 years old, making her the oldest of the main cast.

The original "Pretty Little Liars" had multiple sets of secret twin sisters, and in homage to that, 22-year-old Mallory Bechtel plays twin sisters Karen and Kelly Beasley, who are the mean girls of the local school.

The twins are high school students and peers of Imogen, which means they are also between the ages of 15 and 17.

Like the original series, the group of girls have several love interests.

Chip is another film lover, who works at the local theater with his unrequited crush Tabby.

While Chip is a high school student, Carson Rowland, who plays the character, is 24.

Alex Aiono is 26 years old but he is also playing a high school student in the show.

Aiono plays popular jock, Shawn, who is dating Noa.

Faran's love interest appears to be Henry, another student in her ballet class.

Ben Cook, 24, plays the high school student, who seems to be between the ages of 15 and 17.

High school jock is Tyler played by Brian Altemus.

While the character is no older than 17, Altemus is 25 years old.

Much of the mystery of "Pretty Little Liars: Original Sin" relates to a tragedy involving Angela Waters at a New Year's party in 1999. Her age is never given, however, it is likely she is 17 or 18 in the flashback in the pilot.

Angela seems to be in the same class as the main protagonists' parents who are revealed to have graduated in 2000 in episode two.

Gabriella Pizzolo, who plays the character, is 19.