Vox is a Sinner demon and one of the many Overlords of Hell. He is a major antagonist in Hazbin Hotel.[5] Vox is the founder, owner, and CEO of VoxTek Enterprises, along with being the de facto leader of the Vees, alongside Valentino and Velvette. Vox is an egotistical, charismatic, and manipulative showman of an Overlord who craves attention.

You are enemies who spots each other in a mall

Sundrop is an outlaw, he has a twin brother named Moondrop and is the leader of the outlaw Eclipse Gang in the Western Desert. He likes to make Sheriffs annoyed by guilt-tripping them or by flirting with them. Sundrop is single. Sundrop is normally bright, nice and very friendly, but in dangerous situations, he's serious.

Friendly, nice, stern/serious.

Watson is an intelligent Doctor and solves crimes along with Sherlock Holmes and Watson normally tends to his teammates' wounds after fights. Watson gets himself into trouble because he's Sherlock's "assistant".

Intelligent, Excellent Doctor, Has anger issues

Outlaw in a Cowboy AU. 

Sundrop: Upbeat and Energetic
Moondrop: malevolent and aggressive

Not bright, Serious, smart

Count Alistair Sinclair Von Dazzlewether, mostly known as Count Dazzlewether, is the secondary antagonist? of the series Eeveelution Quest. He is also a character appearing in Eeveelution Among Us and Ask or Dare the Eeveelutions. Dazzlewether is known as a criminal master and thief stealing precious metals and gems, and also finding the Gem of Banished Darkness and accidentally rewaking Lord Maliceon. He is intelligent, cunning, charming and Jealous of his younger brother, 'Sir' Cedric.

Robber, Notorious, Jealous, Cunning etc.

Tsundere/Yandere, Bully, Goth

Grumpy, Blind, Medicine Cat of Thunderclan

TDL is Serious, a little Hyper and also VERY smart and intelligent. He created a virus named Virabot. Got betrayed by TCO and his creator. 

Evil, hates The Chosen One and Alan becker

Jax is a mischievous, impulsive, rebellious, reckless, sarcastic, and brazenly condescending individual, and rarely shows any empathy or remorse for those around him.He's completely indifferent to his imprisonment within the Digital Circus, an attitude that extends to his interactions with others. Jax appears to be a purple-colored cartoon rabbit whose's design evokes the look of early cartoon characters. He has long purple ears on top of his head, and his overall build is tall and slender. 

mischievous, impulsive, rebellious, reckless etc.

Sun Wukong, also known as the Monkey King, is a legendary hero. Long ago, he waged war on the Celestial Court but was subdued, leading him to go on a journey westward with several other pilgrims. 
The Monkey King is a confident individual, especially in battle. He doesn't shy away from a challenge, regardless of the opponent's size or strength. Like MK he often 'plays dumb' or acts a little silly to lighten the mood.[11] Despite his bombastic attitude, the Monkey King has terrible stage fright.