Zack is a character first introduced in Season 3 of Pretty Little Liars. He is portrayed by Steve Talley.

He is a love interest of Ella Montgomery

Zack is first introduced while working the register at The Brew, where Ella is waiting for a date with someone she met online, who turns out to be Pastor Ted. Zach flirts with Ella and is seen looking on as she meets Ted. At the end of the night, Ella returns to The Brew looking for Emily because she wants to ask if she's seen Aria. Emily had already left but Zack invites Ella to stay as he is the owner and can eke The Brew open as long as he likes.