'Glee' star Heather Morris says she once confronted a fan who was 'stalking' her near her apartment complex

• "Glee" star Heather Morris recalled a fan "stalking" her outside of an old apartment complex. 
• Morris told Insider the person had a dog that looked like hers and looked "slightly identical to me."
• She stars as Addison, the best friend of a pop star who's being stalked in "Fatal Fandom."

Heather Morris captured our hears as Brittany S. Pierce on "Glee," which aired on Fox from 2009 to 2015. While speaking with Insider about her new Lifetime movie "Fatal Fandom," she described a disturbing situation with a fan who was trying to capture her attention in a misguided way. 

Morris said that while she was living in an apartment in Los Angeles, there was a person who "would stalk me, and walk their dog by my apartment complex." 

"And anytime I left the apartment complex, I saw this person and their dog. And their dog was eerily identical to my dog," she continued. Morris said the girl looked "slightly identical to me."

 "She pretended like she didn't notice me, but it happened every time I stepped out the door," she said. 

Eventually, Morris decided to confront her. "I was like, 'This can't happen anymore. I know what you're doing.'" She described the woman as pretending to be clueless to the situation, but said she was ultimately "harmless" and"just backed off and went away."

"But I wonder what her intentions were when she was stalking me, because it was every day for a month that I saw this girl," the "Spring Breakers" actor said. 

Morris plays the best friend of a pop star with an obsessed fan in a new Lifetime thriller

In her most recent role, Morris plays Addison Bright in Lifetime's new thriller "Fatal Fandom."

Addison is pop star Eden Chase's (Chaley Rose) best friend, who sticks by Eden after she's nearly kidnapped by a fan. Eden hires bodyguard Jackson Reed (Pete Ploszek) for protection, but when scary things continue happening to the people around her, Eden has to reconsider who to trust.

The actor told Insider she's a fan of Lifetime's thrillers because "you find these characters who you personally relate to, and they have so much heart, and you feel like they could be your friend."

"But ultimately they just chose the wrong path," she added.

According to Morris, "Fatal Fandom" is a thriller with a message behind it. "Stand solid in who you are, and stick up for people," she said. "Stick up for whoever you can that doesn't have a big enough voice, or feel strong enough that they can stick up for themselves."

"Fatal Fandom" premieres on Lifetime Saturday, April 2 at 8 p.m. ET.