The later Nick was such a vastly different character than the season five Nick. You stumble into Nick’s life and he seems like a victim of terrible circumstance, who was probably religious, did everything by the book, and was handed this terrible tragedy that made him angry at God. He’s a victim, and the devil takes advantage of that; it’s a very heartwarming story, there’s sympathy all around, and the devil himself comes off as a righteous, honest character, which you don’t see a lot in the angels in “Supernatural”; they’re sort of dicks, right? And here’s this guy coming out saying real things, and making this enormous claim that he will never lie to Nick; that’s a huge thing.
I love season five Lucifer because he’s a grand character. He’s remote, but identifiable. He’s the smartest and most powerful guy in the room. A being to fear. And I think that Lucifer probably could’ve beaten Michael, because he was just a powerful and scary being.
When Nick comes back later on, there’s a suggestion that he wasn’t sort of the family guy that was all there, all in spirit. He had a lot of deep flaws, and the devil kind of took advantage of those flaws. That later Nick was more like a guy who had felt power, and liked it, and wanted it back. So rather than a guy who was exploited by the devil because of his tragedy, he was a guy who fell in love with power, and Lucifer, and the idea of being unbound by any moral code. And he wanted all that back. So, he pursued Lucifer as a lover; it was sort of a story of unrequited love. Of this guy wanting to reconnect with this feeling he could never get. It left him with this residual malignancy. Each time he killed he got a little taste of the piece that Lucifer left in him. So that Nick was very different than the season five Nick.Mark Pellegrino