Dianna Agron was reportedly purposely left out to of the "Glee" tribute episode for the late Cory Monteith.
The former "Glee" star, who played Cory Monteith's onscreen girlfriend on the Fox series for three seasons, was reportedly left out the episode due to wishes from both past and current cast members and one of the show's creators, according to RadarOnline.com.
A source of the show told the online publication that other cast members who were not contracted for the current season came back to appear on the tribute episode, but not Agron, who was dropped from the musical comedy's fifth season earlier this year.
"It's shocking, because even though she's not contracted for this season, many other actors returned to pay tribute to Cory," the source told Radar. "Even ones with less of a story connection to Finn than Dianna had!"
The insider said Monteith's real life girlfriend, Lea Michele, and co-creator, Ryan Murphy, "intensely disliked" Argon and have worked hard to un-include the actress as much as possible.
"Remember, she played his GIRLFRIEND on the series, and was a major part of his storyline," the source continued.
The source added that Michele and Murphy did not see Agron as a team player and they did not what her "sharing the glory for this very special episode."
However, Entertainment.com reported Agron is "very much part of the Glee family" despite rumors of a feud.
"She is still very much a part of the Glee family and always welcome," an insider explained to E! News in response to the allegations.
In late July a memorial service was held for the actor, which Agron attended alongside her "Glee" co-stars.
Monteith, who died as from a drug and alcohol overdoes in a Canadian hotel this summer, will be honored by the FOX series in an episode titled "The Quarterback". Murphy recently told The Hollywood Reporter that performances in the upcoming episode were raw and heartfelt for the late actor.
"Almost everything in that episode is from the first take of every performance because the actors and the crew had a really hard time shooting it," Murphy said. "I've never seen a crew that you can't continue shooting because they've left the room sobbing. It was very hard. I struggled even working on it because what you're seeing is what they felt not just about Finn but Cory."
"The Quarterback" will air Wednesday.
