The actor was none other than Penn Badgley, who played Dan Humphrey, her characters love interest.

Blake toldGlamourthat she was so upset by Penn being cast as Dan that she turned her castmates against him.

At first I was so upset that they hired him.

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I actually poisoned the whole cast against him, she said.

But then they noticed that he wasnt a jerk and was actually a really nice, charming person.

Blake portrayed Serena van der Woodsen, a socialite and the it girl of Manhattan.

Blake Lively in a patterned outfit at a public event, smiling and posing for the camera.

We hang out after filming.

Blake ended up dating Penn, her on-screen boyfriend, in real life from 2007 to 2010.

[But then] we were like, Oh no, thats exactly what they want.

Blake Lively on Glamour cover, August 2009 issue, wearing a sequined dress, with magazine headlines visible.

They wanted us all to date.

The actors were seen together in New York in 2021 and follow each other on Instagram.

Penn does not follow Blake.

Blake Lively looking concerned in a striped blazer, outdoors in a scene from “Gossip Girl.

Instead, they argue thatBlaketarnished her own reputation with her interviews during the press tour for the film.

Justin countersued Blake and her husband,Ryan Reynolds, and is seeking $400 million in damages.

He claims that he was the one to have his reputation destroyed by the Hollywood power couple.

Penn Badgley in dark sweater in a scene from “Gossip Girl.

The 41-year-old filmmaker claimsBlaketried to hijack the film, including modifying an important rooftop scene where their characters meet.

Her team describedJustinscounter-suit as another chapter in the abuser playbook.

This is what experts call DARVO.

Blake Lively in conversation on a couch with Penn Badgley, surrounded by picture frames in a scene from “Gossip Girl.

A trial is scheduled for March 9, 2026.

Check out the results:

Blake Lively in a pink dress holding flowers next to Penn Badgley n a tuxedo at a formal event in a scene from “Gossip Girl.

Gossip Girl cast in formal attire at a red carpet event, featuring Blake Lively in the center.

Blake Lively wearing a jeweled dress at a Forbes event.

Comment mentioning Blake Lively with opinions on personal relationships.

“Comment by Kimberly Marie Newham Cosgrove saying ‘Sounds about right’ related to Blake Lively confession.

Comment on Blake Lively’s interview resurfacing, saying, “I think Karma is doing its job!

Comment text about a person with perspective on a contentious topic involving Blake Lively.

Comment referencing Blake Lively and Gossip Girl cast celebrating, with a playful emoji.

Blake Lively mentioned in a tweet about cast interactions and dynamics with co-stars.

Tweet discussing Blake Lively’s influence on co-stars and a scandal involving Justin and a sequel.

“She’s Over”: Blake Lively Admitted To ‘Poisoning’ Co-Stars Against Actor—The Interview Has Resurfaced

CGALL tweets about Justin Baldoni amid Blake Lively’s confession controversy.

Tweet reaction to Blake Lively confessing about influencing co-stars, calling her behavior a known pattern.

Tweet discussing Blake Lively’s strategy and karma against another actor, posted by Tea Enthusiast on February 13, 2025.