EXAMPLE TIME WITH LOKIBUTT
Name: Loki
Pronouns: he/him
Species: Vampire
Age: ~600 years dead
Presence among humans: Loki varies between maintaining the veneer of humanity and simply erasing human memories and hypnotising them into not caring that he doesn't look human.
Short Bio: Loki is a very old and very notorious vampire who has since mellowed a little but in the previous century was very territorial. These days he spends his time flitting around and not doing anything productive with his life which, honestly, he has never really done anyway. His vampire senility is the obession with breaking and changing his own patterns of behaviour and challenging his previous ideals or methods. This makes him a very irritating or dangerously unpredictable person to be friends with, and he doesn't have many. Loki is generally cheery and friendly but a little wild, and mostly rather sadistic or just plain manipulative towards humans. He has a lot of experience to fall back on but he's neither creative nor intelligent, and gets by on raw charisma and by being historically extremely hard to kill.
Personality in 5 words: excitable, malicious, unpredictable, happy-go-lucky, egotistical
Relationships with other characters/species/factions: Loki's one redeeming feature might be that he genuinely cares for his 2 wards. Unfortunately for everyone else, one of them is the tyrant vampire Queen Alice, putting him in a legal grey space because technically he has command of the queen so any actions she takes against him could be countermanded. Fortunately he loves and supports her rise to power, along with his other ward George, who he has a more complicated relationship with as ex-lovers. Loki avoids other magical creatures because their blood is disgusting, and avoids magic users because they're usually trouble.
Skills/abilities: short-range teleport, monster form that can fly/has claws, powerful regeneration, very sharp hearing, absolute power of hypnosis on humans (non-humans and altered humans are much less strongly affected, or usually not affected at all)
Weaknesses: touch of cold iron negates or weakens most of his abilities, weak to binding/defensive spells vs. evil creatures, passes out and bruises to death in sunlight, cannot enter human abodes (pushed out by invisible force)
RP notes: Loki is a little OP and has a very overwhelming personality, so if I do use him for RP I'd like to discuss some details first, just so I don't cross any lines and we're both on the same page! c: