Gregg Sulkin is an English actor. He made his television debut in the 2002 Doctor Zhivago mini-series. He later starred in the 2006 British film Sixty Six, and subsequently appeared in the Disney Channel comedy series As the Bell Rings and Wizards of Waverly Place. In 2010, he starred in the Disney Channel television film Avalon High. He also appeared in the television special The Wizards Return: Alex vs. Alex. He starred on MTV's show Faking It as Liam Booker from 2014 until its cancellation in 2016. He also appeared on Pretty Little Liars as Ezra's brother, Wesley "Wes" Fitzgerald. In 2016, he starred in the role of Sam Fuller in the horror-thriller film Don't Hang Up. He starred as Chase Stein in the TV show Runaways, based on the Marvel Comics series of the same name.

Avalon High is a 2010 Disney Channel Original Movie starring Gregg Sulkin, Britt Robertson, Joey Pollari, and Devon Graye. The movie is loosely based on the 2005 book of the same name by Meg Cabot. It premiered on November 12, 2010, in the United States, January 22, 2011, in Australia and New Zealand, and January 28, 2011, in the United Kingdom.