Bester is as close to a proper comic book Super Villain as B5 gets.

Morden, just a used car salesman from the devils' lot.
Shadows, an ancient evil high on the smell of their own feet (claws?)
Clark, a puppet with charisma.
Bester? He is convinced he is in the right, and he will kill anyone he has to to meet his goals. Super Villain.


...but no cape.