Because you like George Smiley in Tinker Tailor Soldier Spy

There must be quite a lot of fellows who haven't got anybody to bring them tea in the morning. Bertie Wooster is lucky to have his valet, Jeeves. See them in Jeeves and Wooster.

James Gordon happens to be the one guy in Gotham City with proper morals who doesn't also run around in a cape. See them in DC Extended Universe.

Jean-Baptiste Grenouille may have a phenomenal sense of smell, but he has a weak sense of morality. See them in Perfume: The Story of a Murderer.

King Schultz is about as color-blind as a man of his era can be. See them in Django Unchained.

Robbie Turner has been accused of a crime he never committed, changing the course of his life forever. See them in Atonement.

Marv is a brutish but principled thug who'd be right at home on an ancient battlefield. See them in Sin City.

A conflicted small-town preacher, Jesse Custer leaves an unexpectedly bloody path in his wake. See them in Preacher.

Maya Lambert is an obsessive intelligence officer with tunnel vision leading toward Osama bin Laden. See them in Zero Dark Thirty.

John Yossarian is trapped in irony as he must be insane to leave the war but if he does try to leave, he'll be deemed sane and will be forced to stay, See them in Catch-22.

As the White House Press Secretary, C. J. Cregg is a master of verbal karate and the best damn basketball player in Ohio Valley history. See them in The West Wing.