Badass: Red lost a bet about him crying on the first day. He also manages to hold his own against the Sisters (as in, groups of them, all at once) about half the time.
Badass Bookworm: In addition to being a Badass, he also spends much of his time reading and building a library.
Batman Gambit: He digs through the wall of his cell with the rock hammer he has hidden in the bible, hides the hole under the posters he brings in, gets on the warden's good side in order to keep the posters and then manages to escape, incriminating the warden without incriminating himself.
Book Dumb: His lack of knowledge in literature makes for a hilarious scene in which he misnames several books and authors.
Deadpan Snarker: Not to the same extent as Red, but he does have his moments as well, particularly in the early scene when he's picking on Fat Ass.
Jerk with a Heart of Gold: The first clue we get that he isn’t the sadist he appears to be is when he quietly wishes for 'Fatass' to stop crying, knowing full well that Hadley will beat him for it. He's noticeably upset the next morning upon finding the man died of his injuries.
Played By: Gil Bellows
Book Dumb: He needs lots of help with passing his GED, but is also willing to learn.
Laser-Guided Karma: After attacking and raping Andy for two years, he beats Andy within an inch of his life. Then after a week in the hole, he gets beaten within an inch of his life by Hadley. He is then taken to the hospital where he lives the rest of his days eating all his food through a straw.
Prison Rape: His gang's favorite hobby is to rape weaker inmates.
Jerkass: Killed two people for no reason and then was really happy someone else could conveniently take the fall.
Karma Houdini: He ended up in prison for a lesser crime than murder and with a relatively short sentence (6-12 years). Meanwhile, another person is in prison for life and serves 19 years for the crime he committed.
Motor Mouth: He confesses in his cell so quickly he seems excited about it.
Smug Smiler: He gives a big toothy grin about how he got away with murder.
Smug Snake: He talks freely about the crime he got away with committing in his prison cell.
Warden Samuel Norton
"Put your trust in the Lord; your ass belongs to me. Welcome to Shawshank."
Played By: Bob Gunton
Big Bad: His money laundering scheme blossoms into murder and deliberate wrongful imprisonment when it's revealed his accomplice was innocent.
Hypocrite: He claims to love the bible but he does some thoroughly un-Christian things (killing people, punishing people for crimes he knows they didn't commit, and pilfering money).
Laser-Guided Karma: After committing heinous acts for the better part of the movie, he is about to get arrested by the police for everything he did while the man he kept imprisoned wrongly runs free. Surrounded, he opts to shoot himself instead. Made better by the fact that his own favorite bible passage is about judgment.
Non-Action Big Bad: Norton has his authority to enforce his threats and attack dogs like Hadley to back him up. He doesn't need to get his own hands dirty.
Stealing from the Till: His money laundering is why he can't allow Andy to be freed. Andy even notes he's gotten kickbacks on his kickbacks.