"THINK, MARK, THINK" (Invincible): An epic clash of ideologies between two immortals, father and son

"NO NO NO WAIT WAIT WAIT" (The Punisher): Frank Castle watching his family killed in front of him

Walter White dramatically falling over (Breaking Bad): His reaction when Hank is killed

Willem Dafoe looking up at something (At Eternity's Gate): Vincent Van Gogh having a mental breakdown

Agent Galahad (Kingsman): In one of the best action scenes ever, super spy Galahad kills a church full of homophobic & racist religious extremists.

GI robot (Creature Commandos): A robot designed to kill nazis in WW2 murders a gathering of neo-nazis after seeing the flag

B.J Blazkowicz (Wolfenstein): Protagonist of the Wolfenstein shooter games, where you play as someone who shoots down a bunch of Nazis in an alternate timeline where the Axis Powers have access to sci-fi and supernatural technology.

Captain America (Captain America: The First Avenger): there's a brief montage in the first Cap film of him & the Howling Commandos on the warpath

Superman TAS: Lois Lane asks Clark Kent how he always gets the best stories. Clark slyly tells her that he gets up close to the action constantly because he's actually Superman, to which Lane merely replies "You're a sick man, Kent."

Lucifer (show): The real archangel Lucifer runs a nightclub on Earth in Los Angeles. He constantly tells people, including the police, that he's the devil. Everyone assumes he's being metaphorical or grandiose.

Batman (Gotham Adventures v1 #35): Bruce Wayne can't ethically testify in court against someone he helped imprison as Batman, so he confesses his identity. Everyone simply laughs, and the judge sternly tells him off for joking.

Raymond Holt (Brooklyn Nine-Nine): Instead of being a classic "gay black man" character, he's a very strict police captain with a desert-dry sense of humor and an occasional flair for drama when he wants to be petty. While his sexuality is sometimes incorporated into some gags or storylines, it's far from his domineering trait. Gustavo Fring (Breaking Bad): I haven't seen Breaking Bad so I can't quite say, but from what I've been told, Gus could basically be a straight guy and the story wouldn't change. I didn't even know there were gay Breaking Bad characters until this post. Undyne the Undying (Undertale/Deltarune): You don't actually realize Undyne is a lesbian unless you go for the more pacifistic option and watch her date Alphys. You could play undertale start to finish and never realize it, but the ship between the royal guard & royal scientist is one of the best in game.