5' 10" (1.78 m)
Gregg was born in London, England, where he attended Highgate School. Gregg made his acting debut in 2002, with the mini-series Doctor Zhivago (2002). Gregg played the lead role, Will Wagner, in the Disney Channel Original movie Avalon High (2010), which premiered on November 12th, 2010. He also appeared as Alex Russo's werewolf boyfriend, Mason Greyback, on the Disney Channel Original series Wizards of Waverly Place (2007) & ABC Family's Melissa & Joey (2010). He has two feature films in post-production; "Camilla Dickinson" and White Frog (2012). Sulkin received the "Rising Star Award" at the Hawaii International Film Festival 2011 in Honolulu.
He was on the Yellow Team on Disney's Friends for Change games.
In an interview on Soccer Talk Live on the Fox Soccer Channel, Gregg announced that he was a fan of Arsenal Football Club.
He normally has a very prominent British accent, but can easily change it to sound very American.
Plays a werewolf in Wizards of Waverly Place.
Can be seen in his reccuring role on Disney's Wizards of Waverly Place, as Alex Russo's boyfriend.
Has acted alongside Helena Bonham Carter, Eddie Marsan, and Catherine Tate.
Attended school in North London.
He has both Ashkenazi Jewish (including Dutch Jewish) and Sephardi Jewish ancestry.
Gregg had his Bar Mitzvah ceremony by the Western Wall in Israel.
[on his Jewish upbringing] The Jewish community is all about love and family, which is the most important thing in my life too.
I know when I have kids, when I'm older, I'm going to encourage them to play sports because I think it teaches you a lot. It teaches you discipline, teamwork, and that there's really no 'I' in team.
I didn't ever think about being an actor. But I fell in love with it when I realized how amazing, difficult, and interesting it is.
The fans on 'Pretty Little Liars' were the craziest fans I've ever met in my life in the best possible way. The dedication that those fans have to the show and the characters is amazing.
I love sports, and when I was playing soccer, I was always trying to be the leader on the team and the one who takes control.
If I had any advice to give people, it would be to relax; never treat an audition like an emergency. There will be plenty more in your career. If you think you messed up, you probably didn't. And if you did mess up, it's not the end of the world.
Ever since I was young, I played sports.
I've played American characters so many times now, it's so natural to me. But when I play American, I stay in the American accent from the minute I get the job till the minute I wrap.
There are more things to worry about in the world than a messed-up audition. It's out of your hands. So often, it's not down to acting abilities but something an actor has no control over. So go in, be prepared, do your job, and go and enjoy the rest of your day.