Frank "The Punisher" Castle is not the typical Marvel superhero. Mainly because he's not super, nor is he a hero. He is in the top 10 anti-hero list though, and fans love him for that! His crusades have taken some truly gruesome turns as he declares bloody wars on crime and comes out on top. With a kill count of around 48,500, it is obvious that The Punisher does not take prisoners. In one single-issue comic called The Punisher Kills The Marvel Universe written by Garth Ennis and illustrated by Doug Braithwaite and Michael L. Halblieb, the man is hell-bent (as the title suggests) on destroying the entire Marvel Universe.
This one-man war machine does have a code when he conducts business though, the main rule being to spare innocents at all cost. He makes sure not to make the mistake his family died because of. The mistake that made him The Punisher. Although he manages to follow his rule to the letter during his massacres; some non-canon comic books, movies, and even the Netflix series show Frank Castle killing a person that does not deserve it.
10 he kills his only friend to accomplish his mission, Daredevil can't reason with Frank
The Punisher Kills The Marvel Universe has many undeserving deaths. The most notable of which is Frank Castle's attorney during his incarcerations: Matt Murdock, AKA Daredevil. Although many Marvel characters have been imprisoned, The Punisher probably holds the longest jail time.
That is why Castle and Murdock have a very complex relationship. After eliminating Daredevil, his final target, Frank unmasks him to find his only true friend's body between his arms.
9 Frank castle squashes spider-man, Even if he's a friendly neighbor
In an alternate universe, Frank Castle's family meet their untimely demise in the wake of a battle in Central Park between some of the most powerful characters in the Marvel Universe. The Punisher kills the Marvel Universe is a single-issue comic book by Garth Ennis, Doug Braithwaite, and Michael L. Halblieb.
As the title suggests, The Punisher sets his mind on hunting the entire Marvel Universe. While Spider-Man and Venom are at each other's throats, he successfully lures them into a booby-trapped sewer where he finishes them off with ease. The friendly neighborhood Spider-Man did not deserve this punishment. Poor Spidey.
8 domestic abusers will be shot on site, Litterers & cab drivers too
Issue #82 of The Spectacular Spider-Man by Bill Mantlo, Al Milgrom, Jim Mooney, Bob Sharen, and Diana Albers shows The Punisher in his most destructive light in the first 5 pages. His first target is a man assaulting his wife, a heinous crime that does not deserve such excessive force.
His next targets are a couple that missed the trash bin when they threw a newspaper they were using to shelter themselves from the rain. When the gunshots from Castle's gun scare the passing taxi, the driver ignores the red light out of fear and ends up as The Punisher's final target.
7 it took a nuclear missile to clobber the thing, Along with most super-teams
The entire Marvel Universe does not deserve The Punisher's wrath in The Punisher Kills The Marvel Universe. But some characters' deaths are truly a shame. Like the Fantastic Four's The Thing for example. His rough exterior encases the kindest superhero ever.
When Frank Castle gets a hold of a nuclear weapon from Doom, he tricks most of Marvel's elite superheroes and supervillains to go to the moon. Once there, he sends them a farewell present that might be considered a little too extreme; even for Castle's standards.
6 the blacksmith deserved to live with the consequences of his actions
Frank Castle, aka The Punisher, makes his debut in the second season of Daredevil. He is the antithesis of Matt Murdock, who firmly believes that the judicial system works. Frank, on the other hand, doesn't operate within a moral code. At the end of the season, The Punisher eliminates his former unit's commander Ray Schoonover (The Blacksmith) for murdering his family in cold blood.
Karren berates Castle for Blacksmith's murder, arguing that he deserves far worse punishment than death. Being humiliated and incarcerated would have been a much more fitting condemnation than execution.
5 a federal agent as a human shield? Frank should have realized he can't control the chaos he creates
The Punisher: Warzone is a movie that takes place 5 years after The Punisher starts his crusade. His quest to punish evil leads him to Billy "The Beaut" Russotti's recycling plant hideout. During the firefight, Frank Castle uses Nicky Donatelli's body as a human shield.
He later discovers that Donatelli was in fact an undercover FBI agent. The outcome of his actions not only got an innocent man killed, but it also led to the creation of "Jigsaw".
4 when the governments of the world take away all criminals with nuclear warfare, The punisher decides to eradicate humanity itself
Garth Ennis strikes again with Richard Corben as an illustrator, in another Dark Punisher twist. They manage to create a post-apocalyptic nuclear fallout world. In another single-issue comic-book, The Punisher: The End, Frank Castle sets out on a final hunt. Only this time, humanity itself is the target.
He tracks down the last group of survivors on foot where he gets lethally exposed to radiation. Nothing else to lose, he makes sure to eliminate the human race to prevent any future man-made catastrophes
3 a hundred-year-old mafia boss is not safe from the punisher
In the very first issue "In The Beginning" of The Punisher: Frank Castle Max by Garth Ennis, Lewis Larosa, and Tom Palmer, Frank crashes the one-hundredth birthday party of a mafia boss and takes him out with a one-hit headshot.
He massacres the entire crew with a machine gun soon after. He could've left the poor elderly man alone. He was practically dead, "Don in title only." Perhaps he does it out of personal hatred towards the mafia for the death of his family.
2 Clint shouldn't have brought up child pornography
Netflix's Daredevil not only gave fans awesome quotes, but it also introduces the protagonist's opposite. A vigilante willing to take lives: The Punisher. The latter's insatiable bloodlust was kept intact. It is shown in the second episode when he meets Clint, a pawnshop owner that tries to sell child pornography to Frank Castle.
The Punisher ends up beating him to death with his own merchandise, a baseball bat. The crime does not deserve the punishment in this case. Even if it is disgusting.
1 Captain Castle would rather eliminate an injured enemy than leave her in the Vietnamese jungle
In what appears to be one of The Punisher's darkest backstories, the second issue of Born by Garth Ennis and Darick Robertson portrays Frank Castle as a Vietnam Captain. After a sniper ambush that takes out several troops, Captain Castle single-handedly eliminates all 6 snipers with a light machine gun. A female Viet Cong sniper survives Castle's bullet barrage but gets injured.
Captain Castle calmly approaches the scene and, without hesitation, shoots the Vietnamese woman, instantly killing her. Why wouldn't he leave her in the jungle? She is practically dead.