In the last couple of months, sinister stories about Ellen DeGeneres' true nature have been circling her infamously "warm and bubbly" image like sharks.

And now, experts have come forward to reveal what exactly these stories could do for her all-important brand image, and it is pretty concerning...

For years now, rumors about Ellen DeGeneres' true personality have been rife.

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Though the television host appears to have a warm and bubbly demeanor while on-screen, her off-screen character is apparently a little less favorable.

Various stories that detail Ellen's true character have been circulating online for years.

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But, in the last couple of months, things have reached a boiling point.

Though she has built her on-screen persona around being outspoken against injustice and generous to the needy...

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Many people have been claiming that, in real life, she is quite the opposite.

Those who have met the star have claimed that she is nothing more than another power-hungry, self-centered celebrity.

Which is certainly a far cry from the relatable and humble TV host we all know and love... Or we thought we knew and loved.

And, over the years, people have started noticing.

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Cracks have certainly begun to show, and rumors of the somewhat nastier personality behind the famous smiling blonde-haired, blue-eyed face have been intensifying.

Ellen's mask has slowly been slipping...

Just take Dakota Johnson's painful appearance on The Ellen Show, for example, where the host rather childishly accused the actress of not inviting her to her Malibu birthday bash. Dakota had in fact invited Ellen, and when she challenged this, you could just see the panic in her eyes after being caught out. It makes for a cringe-worthy watch.

Evidently, people who know the host have been growing tired of her flawless persona...

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And, for many years now, a number of different former employees have been attempting to expose Ellen for who she truly is.

Exposing the rich and the famous will never get old...

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And this has certainly been no exception. Keep scrolling to see a selection of tales told from behind the scenes of the real-life Ellen Show...

Ellen clearly doesn't care too much for writers strikes...

This Twitter user came forward with the story about Ellen's head writer, Karen Kilgariff. Karen was under Ellen's employment for 5 years until she took part in a writer's strike. Boom. Fired. And a word was never exchanged between the pair again.

She apparently holds little respect for her hard-working staff.

This woman claims that her friend used to work as a writer on the show and, in the whole 2 years of her employment, Ellen didn't greet her once. In fact, none of the staff were allowed to speak to the star of the show. Apparently.

Staff weren't even allowed in the same room as her.

Wow, we really aren't worthy, are we?

Her veganism has also ruffled a few feathers in the past.

Now this one won't surprise anyone. For a colleague's birthday, Twitter user, Alison Freer, was celebrating with a BBQ outside of the Warner Bros studios where The Ellen Show is filmed. However, Ellen was quick to shut down all the festivities by sending someone over to put a stop to the celebration, all because she doesn't eat meat. Not cool, Ellen.

There was also the time she bullied Mariah Carey into admitting she was pregnant on The Ellen Show.

Okay, we all remember this one. In an episode that made us all want to claw our eyes out, an uncomfortable Mariah Carey was quizzed by Ellen on whether or not she was pregnant. And, when the singer wouldn't give an answer, Ellen wheeled out a bucket of champagne and pretty much forced a glass into her hand, stating, "Let's toast to you not being pregnant if you're not pregnant." Not your finest hour, Ellen.

And she reportedly sacked someone for talking to her too much.

This Twitter user came forward with a damning story that, after a mildly autistic employee talked to and simply looked at the host too often, he was fired.

Ellen doesn't want any of her celebrity buddies to mingle with the common folk.

Ellen has notoriously sucked up to the rich and famous for years, and apparently she wants to keep them all for herself. When Russell Brand wandered into the employee break area to chat with the crew, Ellen apparently got quite irritated and told him that he "doesn't have to interact with these people."

She has a "sensitive nose".

And this highly sensitive nose apparently means that people working around her have to take extra care with their smell... Including chewing gum from a bowl outside her office before speaking to her. Some members of staff have even been asked to go home and shower. Now that's just rude.

And she apparently chooses someone new to "hate" every week.

A staff member was once told that, while filming, Ellen will randomly "pick someone different to really hate" for no reason whatsoever. And these poor employees simply have to suck it up and endure her wrath for the day.

Staff members are reportedly encouraged to cheer her up when she's in a bad mood.

There isn't enough money in the world that would ever encourage me to do that. Thank you, next.

Her compassion for animals strikes again.

Though it's great that she cares so much about animals, her sensitivity to the matter doesn't bode well for her employees.

She's notoriously picky with her scripts.

Apparently, if Ellen isn't impressed with a monologue, she will simply throw it on the floor and refuse to work with it. Again, rude.

And, just to top it all off, Ellen apparently hates her own fans.

And her own show! Who'd have thought it?

Okay, so the credibility behind these stories is a little questionable...

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And there were hundreds of them. But why would so many people come out to make up stories about one person? Food for thought.

Now, Ellen is yet to comment on these accusations...

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But, even without her admitting or denying them, it is undeniable that they will have a detrimental effect on her brand image.

As stated earlier, Ellen has long branded herself around being warm and kind-hearted...

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So stories of this nature could have a devastating effect on her career.

And now, an expert has weighed in on the situation.

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Brand expert, Eric Schiffer, chairman of Reputation Management Consultants, told Fox News that all of these negative stories coming out about the host are going to be devastating for her brand, and that she will have a difficult time ever recovering from them in the public eye.

In a statement, he said:

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"The behavior that's been revealed about Ellen is rat poison to the Ellen DeGeneres brand."

He has predicted a rather bleak future for the star.

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He continued: "When you have a brand like Ellen's leak information that is 180 degrees different than this facade she's been painting, it creates a dumpster fire on her image and it's like watching the Hindenburg."

And he even predicted how she may attempt to handle the backlash.

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"The way she'll bounce back is to put on even more phoniness and play the game." He then added that she will probably "surround herself with other celebrities, puppies, and babies to try to make light of things." Now, why doesn't that surprise us?

But Eric believes that a large percentage of her fan base has already been turned off from the host...

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Between twenty to thirty percent, to be precise. So she's going to have to work extremely hard at repairing her image and her relationship with her fans.

Still not done with Ellen Degeneres controversy?

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Keep scrolling to read about the time she was seen hanging out with George W. Bush, and how it divided the internet...