Oscar Martinez is an accountant at Dunder Mifflin Scranton. He is a Latino of Mexican descent.
Oscar is openly gay, coming out after being involuntarily outed by his boss, Michael Scott.
Oscar is calm, intelligent, and hard-working, although he has been shown to be occasionally weary of his boss and co-workers. With good reason, of course ...
Michael: Why don't you explain this to me like I'm five.
Oscar: Your mommy and daddy give you 10 dollars to open up a lemonade stand. So you go out and you buy cups and you buy lemons and you buy sugar. And now you find out that it only costs you nine dollars.
Oscar: So you have an extra dollar.
Oscar: So you can give that dollar back to mommy and daddy, but guess what? Next summer...
Michael: I'll be six.
Michael: We'll ask Powerpoint.
Oscar: Michael, this is a presentation tool.
Michael: You're a presentation tool!