I am mentioning "Oz" from the "Wizard of Oz" in my APA formatted paper. I'm not quoting him but just making a reference to his all knowingness. Do I put Oz in quotation marks or just leave it without anything?
If you are simply referring to the character, no, don't put his name in quotes or any other special typography. Like:
Just as the Wizard of Oz was great and powerful, so, etc.
This is true of any fictional character.
My friend Bob is a lot like Captain Kirk, etc.
If you are quoting an actual statement from the books, then you should put it in quotes.
Like Dorothy said, "Toto, I have a feeling we're not in Kansas any more."
If you don't give an exact quote but paraphrase, then don't use quotes.
When I realized that the business world was not the same as college, I felt like Dorothy, when she realized that she was not in Kansas any more.
Note that the title of a book or play should be italicized or underlined.
Just like the Wizard from The Wizard of Oz, so my friend Bob imagines himself to be all-powerful.