When writing an expository paragraph do you put the characters names in quotations?

No.

"Expository" means explanation. This is a type of essay.

Characters are in fictional writing (stories, books, plays, etc.).

When writing an expository paragraph, you typically do not put the characters' names in quotations unless you are directly quoting something they said or wrote. In general, expository writing aims to provide information, explain a concept, or present an argument, rather than focusing on fictional characters and their dialogue.

However, if you are discussing a specific quote from a character within your expository paragraph, you should use quotation marks to indicate that you are directly quoting their words. This helps to clearly differentiate the character's dialogue from your own explanatory text. In such cases, it is important to provide proper attribution by mentioning the character's name before or after the quotation.

For example:
- Incorrect: In George Orwell's novel 1984, the protagonist Winston Smith rebels against "Big Brother" in order to regain his independence.
- Correct: In George Orwell's novel 1984, the protagonist Winston Smith rebels against "Big Brother" to regain his independence. As Winston reflects, "Freedom is the freedom to say that two plus two make four" (Orwell 45).

Remember, the use of quotation marks should be limited to direct quotations and specific instances where dialogue is being emphasized.