Mea culpa. I know that, my brain just wasn’t working.
Meg Murry & Charles Wallace Murry. Okay.
Sorry! :o
Geez, the few that I like have already been said except The Count of Montie Cristo.
The other one that I like is Earl Swagger, the father to Bob Swagger already said by yojimboguy. It seems the two of us like a lot of the same books.
There have been some others but I can’t remember them off the top of my head.
The narrator from Fight Club, by Chuck Palahniuk.
Thomas Covenant from The (two) Chronicles of Thomas Covenant, the Unbeliever by Stephen R. Donaldson.
Severian (and Baldanders) from The Book of the New Sun by Gene Wolfe.
Jesus Christ from The Bible.
just kidding on that last one. 
How could I forget Anne Shirley from Anne of Green Gables?
Harry D’Amour and Kissoon from The Great and Secret Show by clive barker
I didnt see him on here, so if they have already been mentioned consider it a second to the motion, but Ford Prefect and Zaphod Breeblebox(sp?).
I’ve got to second the Wife of Bath. She’s just cool…in a rather odd way.
My other personal favorites are from Madeleine L’Engle’s books, both her fantasy stuff and the “real world” work:
Calvin O’Keefe: Such a nice guy! I just want to hug him. He’s just an all-around great person and he’s smart.
Canon Tallis: A very intriguing man. I’ve read Arm of the Starfish and Dragons in the Waters several times and he is just a puzzle each time. Very interesting…
Adam Eddington: I just want to hug him too. He reminds me of Calvin because he is a nice guy too…though a bit of the angsting sort. And he talks to dolphins. Always a plus.
jessica, peering at the copy of Many Waters sitting next to her and following the chart of people
Actually, I love all the witches. Hard for me to pick a favorite, though I do seem to lean toward Granny. (I think she’s the one I’m most like.) And Greebo’s pretty cool, if he can be counted as a character.
Maybe he doesn’t count as ‘literary’, but I’ll have to add Calvin from Calvin and Hobbes. 
Another I remembered after my post above is Barlennan from Mission of Gravity by Hal Clement (he has class, even if he does look like a squashed caterpillar).
Yossarian and Clevinger from Catch-22 .
Hunter S. Thompson (aka Raoul Duke) from everything he wrote, whether he’s lying or not.
Uncle Duke from Doonesbury.
Captain Queeg from The Caine Mutiny .
J. Alfred Prufrock.
Jack Ryan–Tom Clancy
D’artagnan–Alexandre Dumas
Jacob Barnes–Hemmingway… Oh, he reminds me so much of me. Just tell the damn girl you love her!
Hazel Motes–Flannery O’Connor He was such a funny bad tempered man…
Oh, yeah, almost forgot
Herbie Hancock–United States Constitution:)
Hank Reardon in Atlas Shrugged by Ayn Rand
Grand Admiral Thrawn in Heir to the Empire by Timothy Zahn
Dan in Microserfs by Douglas Coupland
Ray Kurzweil in The Age of Spiritual Machines by Ray Kurzweil
the last one doesn’t really count, but i love that book.