You could name her Wendy and nobody would even realize you named her after a fictional character (Wendy from Peter Pan, the name didn’t exist before that).
This is only MHO and no offense meant, so please accept my apologies in advance if my comments annoy you. 
How do you pronounce Voldemort, and what is it from? mort means dead in a lot of languages, and that’s not a name I’d go with.
Sherlock isn’t terrible, but I wouldn’t give that one to a child. The first thing that popped into my mind when I saw that was the sarcastic phrase from the 80’s (No shit, Sherlock!") Maybe that’s no longer something people say.
As to the OP, my reaction was just about exactly the same as Tangent’s, including Hal from 2001 (except I didn’t know the Glee connection).
If you could give us an idea of the area of fiction you are interested in, that could help narrow it down.
Also, are you opposed to any historical names? Like a general from the Revolutionary or Civil War? There are a lot of names to pick through there.
Finn is a great choice, IMHO (I don’t watch Glee, so I didn’t know the connection there.) Quinn isn’t bad, but makes me think of a girl (I think there was a child actress back in the 70’s or 80’s whose name was Quinn. I really like Quint, and don’t think it would be an issue for spelling, etc.
Come on, that’s a girl’s name. Or Tonto’s horse, take your pick.
I know two couples who named a child “Jace”, after this guy.
Well, I was pregnant, just found out it was a boy, and at a total loss. We had discovered the perfect name for a girl, but we weren’t having a girl. So one night I happened upon a repeat of Will & Grace, one of the later episodes where Grace is married to Leo.
Leo.
It was perfect. It had history, it was short, it wasn’t too popular, and it had this Victorian old man feel I liked. Well, my husband insisted that even though Leo is a legitimate name, it was a better nickname. So we looked for names that could have ‘Leo’ as a short form. I don’t like ‘Leonard’ and ‘Leonardo’ seemed too cartoonish to me, but I thought ‘Leopold’ would be brilliant. ‘Leopold’ was the first king of the Belgians and I’m a quarter Belgian and it was Mozart’s fathers name. It was perfect! But Andrew didn’t like ‘Leopold’. He had just seen 300 and loved ‘Leonidas’.
Now don’t get me wrong, I love the name Leonidas. It’s beautiful and musical while still being masculine, and the connection to Greek history makes me happy. It’s just that 300 came out literally the month I got pregnant and I was sure everyone would scream “THIS! IS! SPARTA!!!” at my child for the rest of his life. So we argued back and forth about if for months before I gave in. I was getting ‘Leo’ and that was probably what everyone was going to call him anyway, so I gave my husband ‘Leonidas’.
And it actually hasn’t been that bad. Leonidas is now two and a half and only one person I’ve ever introduced him to has referenced the movie in anyway. Turns out 300 was kind of a throwaway film most people have mostly forgotten about (other than internet and comic book geeks, but they just think it’s cool.) and it has just mostly faded from the public lexicon. The only problem I have is that people have problems with the pronunciation. They just don’t seem to get that unless you’re doing the strict Greek pronunciation, you can just say it like it’s spelled. But in terms of tired jokes, I get more about my youngest son, Abraham, called Bram for short.
So my advice would be that it depends on the fictional character. Is it from a work that’s generally respected and revered, or a work that gave you a neat name idea but otherwise won’t be remembered widely? Then I’d say go for it. But if it’s ‘Huck’ or ‘Arwen’ or ‘Thorin Oakenshield’, those are just too recognizable and immediately identifiable with the character. It would be hard for the kid to eke out their own identity separate from the character, and that could be annoying.
I don’t see what’s the problem. Franny was the girl. Zooey was her brother. Seems like you could still go with Zooey.
Are you a Salinger fan in general? If so, what do you think of Holden? It’s the sort of boy’s name that’s very popular right now (two syllables, accent on the second, ends in -en, sounds like a last name), so it might not stand out as crazily fictionally oriented, either.
Finnegan (and they’re all nicknamed Finn) is skyrocketing in the name stats right now, FYI, so if you live in the right sort of neighborhood, there are likely to be other little Finns around. Quinn is rising in popularity for both boys and girls, although it’s still more common as a boy’s name. Holden is roughly as common as those two, and started to become popular around the same time, so it might be of the general genre that your wife likes. Hal peaked in the sixties, and Kilgore and Huck have never been in the top 1000 names, which might be why they don’t sound like good names to your wife.
I kinda want to name my daughter Harleen Quinn. A boy: Remy Le Boux (or however you spell it).
Moby.
Hey, here’s a revolutionary idea – why not just pick a real boy’s name?
You know, something like Charles, Thomas, John, Richard, Robert, Gregory, Arnold, Dennis, Earl, Frederick, Donald, Howard…you know, something solid.
Nothing trendy, nothing with a weird spelling, just a good old regular boys’ name…now what could be wrong with that?
That’s what I finally said to my husband. After months fretting over ‘Leonidas’, I was like, “Ah, screw it. If Kevin Smith can name his daughter ‘Harley Quinn’, I can name my son ‘Leonidas’”
We can thank the movie Splash for the plethora of Madisons we have.
Yes, and how rediculously cliche is that?
“Madison” is a last name, not a first name anyway. See President #4.
My first name is Nikola and N. Tesla is a reputedly a relative ( distant, but both branches of my father’s family were Serbs from his corner of Croatia ). I wasn’t named after him, though ;).
Magenta.
Seven
I knew some one who named there son Ender. I am still not sure how I feel about that.
Really? Because I think of Quinn primarily as a girl’s name.