Sir Pentious is a character from Hazbin Hotel with a personality that is flamboyant, bombastic, and persistent. He is also short-tempered, temperamental, and takes pride in his ideas of how evil and cunning he is. His personality is similar to that of classic "mustache-twirling" stock villains. 
Some say that Sir Pentious is an ESTJ (TeSiNeFi) personality type. He is devoted to his goals, such as taking over hell, and spends a lot of time figuring out how to do it.