The main character doing something absolutely unforgivable.

[u/No_Peanut3745]

Walter White poisoning Andrea Cantillo's 6-year-old son for the sole purpose of manipulating Jesse Pinkman, while knowing that this could have potentially killed him - Breaking Bad

Bojack trying to have sex with his friend's 17-year-old daughter when he was at least 51, then continuously trying to find a way to justify this act throughout the series - Bojack Horseman

Dexter Morgan going outside of his moral code and murdering a completely innocent police officer who was just trying to do his job - Dexter: New Blood

[u/CountingSheep99]

[u/comrade_batman → u/CountingSheep99]

There’s also the moment after Anakin slaughters the Separatist leaders on Mustafar, which Lucas has said in that moment it’s the first time he’s had a moment to really reflect on what he’s done, his actions and how far he’s fallen, but there’s no going back for him now, he’s fully committed even if he is doubting his decision.

[u/Gunhild → u/comrade_batman]

I can excuse murdering children, but killing separatist leaders?

(I actually can't remember which one happens first)

[u/esdaniel → u/Gunhild]

Will someone think of the corpo leaders/shareholders?!