Many of the minor characters in my story have official titles. CEO, Sergeant, Lt. Colonel, Ambassador, President, Prime Minister, Chief of Staff, Director, etc...
If the character is minor, should I just use the character's title and never give the character a name?
If the character is very minor (appearing in only one chapter), can I just use the title?
What if the character is recurring?
If a certain character is a major figure in the story and has multiple titles and names, which one should I use? (i.e. - The character is called one name by his best friend, another by his wife, and another by his employees. Everyone else just uses his official title.)
Must I use the same name consistently for this character when writing as an omniscient narrator?