Yammy is one of the most powerful Arrancars, a group of hollows who have gained humanoid form and gained significant powers. His constant displeasure can be traced back to his frustration at being one of the lowest-ranked Arrancars, despite his immense power. This often leads him to lash out at his enemies and even his fellow Arrancars.

His strength is also directly linked to the state of Yammy’s emotions, as his ability to increase in size and strength is supplied by anger. Overall, he seems like a one-dimensional character with a foul personality who prefers to let his fists do the talking.

As one of the most skilled members of the Survey Corps, Levi is a force to be reckoned with on the battlefield. However, his continuous irritability and sharp tongue make him a difficult person to get along with, even for his fellow soldiers. Levi's tragic past, which saw him orphaned and struggling at a very young age further compounded by the loss of countless friends and colleagues to the Titans, has left him with a deep sense of anger and a desire for vengeance.

Levi is also very abrasive and not approachable. He rarely shows emotion, giving a cold impression to others. With a manner of speaking that tends to be blunt and insulting, he is not above provoking or belittling people. All of this makes him a respectful and feared leader, if not unsettling to a great number of people.

Beatrice may look like a harmless, book-loving girl, but beneath her gentle exterior lies a deep well of anger and frustration. As the keeper of the Great Library in the fantasy world of Re:Zero, she spent centuries alone waiting for "That Person" who would grant her salvation.

As a result of her deep emotional attachment to the library and the knowledge it contains, she will go to great lengths to protect it. Beatrice's magical abilities allow her to manipulate space and time, and she generally looks down on others and is bad at dealing with people who try to get close to her. Despite being full of bravado, she's a lonely person and is softhearted beyond her perceived stubbornness.

In the world of JoJo's Bizarre Adventure, few characters are as consistently cranky as Ghiaccio. As a member of the villainous Passione gang, Ghiaccio is tasked with protecting his boss and eliminating any threats to the organisation. However, his short fuse and icy demeanour make him a difficult ally to work with, even for his fellow gang members.

Ghiaccio's Stand, White Album, allows him to generate a suit of armour made of ice, granting him incredible defensive abilities as well as the power to freeze anything he touches. However, his anger can also cause his Stand to become more aggressive and uncontrollable, leading to catastrophic results.

Remembered for his constant crankiness and sharp tongue which often gets him into trouble with his colleagues, Ryūnosuke Akutagawa is a peculiar character in the show. Akutagawa's anger can be traced back to his past, where he grew up in poverty and had to resort to stealing to survive. This led to a deep-seated sense of inadequacy, which he compensates for by trying to prove himself as a skilled and ruthless assassin.

Akutagawa's powers are closely tied to his emotional condition, as his ability to control shadows is powered by his negative emotions. His anger and frustration are what enable him to unleash his full potential, making him a formidable opponent in battle.

From the moment he appears on screen, Katsuki Bakugo's explosive temper is impossible to ignore. Despite his status as a top hero-in-training, the hero’s constant crankiness is a defining trait that has earned him legions of fans and critics alike.

Whether he's screaming at his classmates, berating his mentors, or charging headlong into battle with reckless abandon, Bakugo's anger is always just a hair's breadth away from boiling over.

This intense emotional state has a direct impact on his Quirk, which allows him to generate powerful explosions from his palms. When Bakugo's anger reaches its peak, his explosions become stronger and more unpredictable, making him a dangerous force to be reckoned with.

Thorfinn Karlsefni is the main character from the anime series Vinland Saga. He is known for his brooding behaviour and never-ending anger towards his enemies which can be traced back to his past, where he witnessed the murder of his father at the hands of a Viking warlord named Askeladd. This event traumatised him and pushed him towards a desire for revenge.

This propels him to become a skilled warrior as he spends an entire decade attempting to take revenge on Askeladd, even following him into battle to stay close to him. He grows into a cold and merciless killer, with his anger blinding him to the cost of his actions. It usually makes him a problematic opponent, but also a tragic figure who struggles to find peace in a world consumed by violence and war.

Vegeta is a fan-favourite character in the Dragon Ball Z anime series whose conduct can be traced back to his past as a prince on the now-destroyed planet Vegeta. He is a proud warrior and holds his Saiyan heritage in high regard, which sometimes leads him to be haughty and arrogant.

He is also fiercely competitive and hates being outmatched, which often fuels his anger toward his enemies. Despite his faults, Vegeta's constant anger is not without purpose. It serves as a motivator for him to become stronger and exceed his boundaries, especially during battles. As we see his character develop throughout the series, his anger becomes more controlled and focused, allowing him to better harness his abilities.

Abandoned as a child and forced to survive on his own in the mountains, Inosuke grew up to be fiercely independent, but it has also left him with a deep-seated anger and mistrust of others. He also has a wild and fierce character, often charging headfirst into battle without a second thought.

His wild and bold personality makes him a challenging fighter, as he uses his brute strength and agility to overpower his opponents. Inosuke's anger powers his fighting spirit, allowing him to tap into his inner strength and push himself to the limits in battle. And despite a rough exterior, Inosuke has a strong sense of loyalty and camaraderie with his fellow Demon Slayers, making him a valued member of the team.

Despite her small stature, she has a fierce and fiery personality that often causes her to lash out at those around her. Taiga's anger is caused by her insecurities about her height and her family situation - coming from a wealthy family but being estranged from her parents and living on her own. This has left her feeling isolated and vulnerable, which in turn leads her to overcompensate with a harsh attitude.

Taiga serves as a love interest for the main character, Ryuuji, but her cranky attitude makes it difficult for him to get close to her. She has a steely demeanour and is not easily swayed by others' opinions of her, leading many to see her as intimidating or unapproachable. However, as the series progresses, Taiga's rough exterior begins to soften, and she learns to trust and rely on others. She also starts to open up to Ryuuji and her other friends, revealing a more vulnerable side that makes her all the more endearing.