I'm doing this because I'm bored:
Characters that disturbed my existence so much that they have a title of their own:
The love of my life: Neil Josten from the foxhole court
My baby: Jonathan Sims from the magnus archives
Characters who have not earned their own title but have been called by multiple titles:
Lestat de Lioncourt from The vampire chronicles/IWTV
Will Graham from Hannibal
Aziraphale from Good omens
Characters who almost achieved the next level:
Martin Blackwood from the magnus archives
Catra from She ra and the princesses of power
Kit Tanthalos from Willow
Carmilla from Castlevania
Nina Zenik from the grishaverse
Zoya Nazyalensky from the grishaverse
Nikolai Lantsov from the grishaverse