A person who may be considered or who considers herself (or by extension himself) much more important than others, has high expectations of others and who is extremely demanding and fussy when it comes to personal privileges.
Any female celebrity, usually a well known singer or actress.
An advocate or champion of a cause or course of action.
The main character, or one of the main characters, in any story, such as a literary work or drama.
A leading person in a contest; a principal performer.