Follows The Rules
In Fahrenheit 451, Captin Beatty is indirectly characterized as sympathetic. It's obvious that Beatty had a love for books at some point. Beatty's speech to Montag about books is full of passion. In the book, Beatty states that he has tried to understand the universe, and that it makes people feel lonely.
Directly: Hard Worker
It's obvious that Beatty takes his job seriously. He is a fireman, which means that he burns books and the homes of people who own books. Beatty and Montag are co-workers. When Montag begins to think that he does not want to be a fireman anymore, Beatty gives him a speech about the history of books and the importance of their job.