Orion, since he's an expy of Don Quixote mixed with a Hormone-Addled Teenager.
Holly: Can we please focus? We are supposed to be professionals.
Orion: Not me! I'm just a teenager with hormones running wild. And I must say, young fairy lady, they are running wild in your direction.
Holly: This had better not be a game, Artemis. If you do not have some serious psychosis, you will be sorry.
Orion: Oh, I'm crazy, all right. I do have plenty of psychoses. Multiple personality disorder, delusional dementia, OCD. I've got them all, but most of all, I'm crazy about you.