Finas and Casimiro/Cas of Hanna Is Not A Boy's Name!
They are two 'normal' vampires [meaning they don't figuratively suck like Conrad and actually literally suck ho ho ho]. They're relatively strong but have no real impact on their own hierarchy.
Finas is even tempered and has the air of a modern highclass gentleman. Polite and cunning, Finas tends to choose a more dignified approach to handling issues and also his food. He is not completely detached to humans, as he enjoys their company but understands that he is not one anymore. He does not seem to have a huge superiority complex, but does not balk at the idea of eating or killing people.
Casimiro is a little smarmy and swashbuckling, boisterous and aggressive. It's hard to tell what he thinks of humans really, as he seems to treat fellow vampires in a very similar fashion. He likes to manipulate and has a vengeance streak a mile wide, though he doesn't take offense too easily. He can be a bit of a bully though, flaunting his strength over others that are weaker since he seems to have trouble with any sort of social buffer.
They are not brothers, nor related in any form or fashion but seem to always be seen together. Nobody seems to know exactly what their relationship entails but they are those type of people who are around each other so much that they seem to know what the other is thinking and could finish each other's sentences. The only thing that truly prevents that is the fact that they have such different personalities.
PS: Fixed the colors a little!