While the reveal of Marinette and Adrien’s secret identities as Ladybug and Cat Noir is probably theMiraculous Ladybugidentity reveal that many fans are most excited to see, the show is full of many other secret identities that could have lasting repercussions. However, it’s hard to imagine an identity reveal with more at stake than the reveal of Gabriel Agreste’s identity, even after his death at the end of season 5.
Even though Gabriel Agreste is now dead, the repercussions of his actions, especially his akumetized villains, are going to last a long time. Season 5 ofMiraculous Ladybugending with Marinette knowing about his villainy but Adrien still oblivious puts their relationship in an awkward position, and the show is probably going to let Marinette grapple with that for a while. However, many seasons after learning of Gabriel Agreste’s secret identity as Hawk Moth (or whatever he happened to be calling himself at the time),the eventual reveal of Gabriel’s villainy to Adrien has only become more exciting.

Adrien Finding Out About Gabriel’s Villainy Could Change The Course Of The Show
Marinette’s Knowledge Creates An Imbalance In Their Relationship
For the first five seasons ofMiraculous Ladybug, both Adrien and Marinette were in the dark about Gabriel’s villainy, and Adrien has remained oblivious even since his father’s defeat. While Hawk Moth’s true identity wasn’t revealed until the beginning of season 2, Gabriel’svillainy was hidden in plain sightduring the first season. Fans have been waiting for Adrien to learn about his father’s secret identity almost as long as they’ve been waiting for the identity reveal between Cat Noir and Ladybug.
Marinette learning about Gabriel’s secret identity set offMiraculous Ladybugseason 6’s many changes, and it’s likely that Adrien learning of his father’s secret identity would cause even more major changes. While Gabriel was Marinette’s idol and the father of her boyfriend,Adrien has deeper reasons to be betrayed by this revelation. Adrien is having to adjust to his father no longer being around and might have some complicated feelings about the situation, even when he’s as in the dark as anyone else. Adrien learning the truth will only make things more complicated.

Gabriel’s Identity Reveal Would Represent A Betrayal By Most Of Adrien’s Loved Ones
Adrien Is Pretty Much The Last One To Know The Truth
While Marinette is the main character, and a lot of the show’s premise at first glance is focused on the relationship and eventual reveal between her and Adrien,Gabriel’s identity eventually being revealed to Adrien might be the single most important reveal in the show. After Gabriel’s death and identity reveal to Marinette at the end of season 5, Adrien learning of his father’s secret identity could have massive repercussions, not only for his relationship with his father, but also his relationship with Marinette.
The reveal of Gabriel’s identity could start a chain reaction of Adrien learning more of his family’s dark secrets.

In fact, the reveal of Gabriel’s identity could start a chain reaction of Adrien learning more of his family’s dark secrets. It would only be natural for Adrien to feel betrayed when he’s finally clued in, becausemost of the people Adrien loves were knowledgeable of Gabriel’s actionsor involved in some way.
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Between Félix knowing more than him about their family’s history with the Peacock Miraculous, Marinette knowing that Gabriel was Paris' villain, and Nathalie helping Gabriel as Mayura, Adrien is pretty much the last person to know the details of his own life. The set-up for the fallout of identity reveals such as the hero and villain being family is one thing that makesMiraculous Ladybugsuch an interesting show.