Action Dad: A deconstruction. His son was murdered, and seeking revenge has only made things worse. He's in prison, his wife has left him due to very understandable reasons, and the deal he made with Sewell has him having to kill Coleridge. Even if Murphy doesn't kill him, Coleridge's death will still haunt him.
He toes the line between this and Badass Normal, being more experienced with and more willing to inflict violence than a few of the previous protagonists (though not quite as experienced as others). He was Sewell's designated hitman for a reason.
Audience Surrogate: Murphy has shades of this: he's seen reacting in ways normal people would, something that was more or less glossed over in previous protagonists. Early on, during the first transitition to the Otherworld, his reaction is "What the hell IS this!?". And when given the chance to mentally catch his breath, is wondering just what the fuck this town is throwing at him.
It's been noted that Murphy seems to be designed to yell "Fuck!" at the exact same time as the player.
Batman Gambit: The whole process of getting into jail was one in order for him to get close enough to Napier to murder him.
Beware the Nice Ones: Even some of the cops who know him as a convict can tell that he's a lot more decent than any con has a right to be. His psyche report even notes that he's soft-spoken and shy. However, the very first thing you learn about Murphy is that he can and will get his hands dirty and be cold as ice about it.
Character Development: Present most clearly in the good endings: Murphy comes to realize that dehumanizing Napier in the name of revenge wouldn't absolve himself from the guilt of torturing and murdering Napier, even if he more than deserved it. Murphy also acknowledges responsibility for not only the victim of his revenge but also for the pain and suffering caused to others in his quest for revenge. With Anne's forgiveness, he moves past the guilt and earns freedom.
Grease Monkey: Was a car-mechanic and will occasionally comment on cars lying around Silent Hill.
Hyper-Awareness: The "Look behind you" button will let you get a full view behind Murphy's shoulder (way more than real life peripheral vision would get you) and yet he barely cocks his head to the side. In action, it ends up looking very much like Murphy is using his hearing more than his eyesight.
Hyperspace Arsenal: Averted with weapons. Unlike in previous entries in the series, Murphy can only carry one weapon at a time. If he finds a gun, Murphy can holster it and carry a melee weapon. Played straight with regular inventory items.
Institutional Apparel: Murphy's a freshly escaped con and starts out wearing a prisoner's jumpsuit. Later in the game, he can find a different outfit.
Made of Iron: He takes damage somewhat realistically, but he can take a lot of it.
Multiple-Choice Past: Whether he killed Coleridge or was framed for it before the game began depends on actions in the game. In addition, the "Execution" ending has Murphy himself as Charlie's murderer, rather than Napier. Hell, he doesn't even kill Napier in some endings. Sewell finished him off and particularly blackmailed him into doing what he wants.
Nice Guy: Though he can be blunt, if you do most of the side-quests, he comes off as a rather gentle man predisposed to helping others, rather than the violent grunt the game introduces him as. He borders on All-Loving Hero if you make a habit of sparing the monsters.
Not So Stoic: He's usually very cool headed and blunt with other people, but he's frantic and rushed when fighting monsters, doesn't take hits graciously, and is quite clearly freaked out by Silent Hill's various scares.
Offing the Offspring: In the "Execution" ending, it's revealed he killed Charlie, just so his wife wouldn't get custody.
Pædo Hunt: Murphy arranging to murder his son's killer, Napier.
Papa Wolf: Deconstructed. Seeking out revenge against his son's murderer only makes things worse. He's still in prison, his wife has abandoned him, and the deal he made with Sewell has him having to kill Coleridge, which even though Murphy doesn't kill him, Coleridge's death still haunts him.
Pay Evil unto Evil: Patrick Napier killed his son so he savagely stabs him to death in the prison shower.
Revenge Before Reason: Thoughtlessly agrees to a crooked deal with Sewell to kill Napier for killing his son.
Screams Like a Little Girl: He verges on it when being chased by The Void. It also sounds incredibly painful, especially since it seems to be ripping blood or even pieces of his very existence out of him. He also screams quite a lot when he isn't currently being hurt, just out of pure terror. Not that we blame him.
The Sociopath: Only in the "Execution" ending, where it's revealed he not only murdered Frank Coleridge, but also Charlie, just to keep his wife from getting sole custody.
Sympathetic Murderer: Except for the fact that according to the tie-in comic "Anne's Story", he didn't actually kill Coleridge.
Tranquil Fury: When beating Napier to a pulp, he's extremely cold and calm during the whole thing.
You Killed My Father: Inverted, his reason for going to prison is a chance to kill Napier for killing and raping his son.
Anne Marie Cunningham
Voiced by: Kristin Price
Action Girl: Except during her boss fight it's more implied than anything, but she had to get through Silent Hill somehow.
Ain't Too Proud to Beg: Despite hating Murphy because she thinks he killed her father, she does try and get assistance from him early in the game, when she slips on a cliff face, even though she had been pointing a gun at the man just seconds before.
Anti-Villain: Particularly when we discover why she wants Murphy's head.
Character Development: It's averted at first, as she succumbs to her inner demons at the end. Compared to every other Silent Hill victim in her position, she may get off very lightly. Depending on your choices, she gets a second chance and does ultimately see the good in Murphy and forgive him for his part in landing her dad in a coma.
Cycle of Revenge: She's after Murphy because he (possibly) killed her father as part of a deal to get at the man who killed his son.
Daddy's Girl: Her whole involvement in the plot is based around avenging her father.
The Determinator: She will stop at nothing until she can kill Murphy, since she believes he was her father's killer.
The Heavy: Sorta, but more in a Hero Antagonist kind of way. She is the main antagonist of Downpour due to her chasing Murphy and trying to kill him, thinking he killed her father. However, as proven by "Anne's Story", Sewell is the actual Big Bad.
Hero of Another Story: She's going through more or less the same thing as Murphy, for similar reasons. She's essentially just another Silent Hill protagonist/plaything. Her story is played out in the tie-in comic "Anne's Story", which also settles the ending.
Jerkass: Towards Murphy until the the good endings of the game where she forgives Murphy.
Not So Different: Both she and Murphy had a loved one who was murdered and are motivated by revenge.
Post-Final Boss: Fighting her as the Boogieman marks the final confrontation, though it is very easy to win unless you decide to let her defeat you.
These Hands Have Killed: Evidence suggests that because he was inebriated at the time, he either caused or failed to prevent a minecart-accident which claimed the lives of eight kids. The Devil's Pit got shut down and fell into disrepair as a result.
Voiced by: Leer Leary
And I Must Scream: After the incident that got Murphy transferred to Wayside, Coleridge ended up a vegetable.
Cool Old Guy: He was a fair and just man when he was alive. Treating his prisoners very well.
Final Boss: The Wheelman, a grotesque manifestation of Coleridge, acts as the final boss of the game...
Flatline: ...who you defeat by pulling the plug on his life-support machines.
Whispering Ghosts: Makes his disembodied presence known with a soft, unintelligible whisper.
Voiced by: Antoine L. Smith
All There in the Manual: His exact transgression that condemned him to Silent Hill's purgatory isn't explicitly stated in the game itself: he had, albeit inadvertently, encouraged one of the callers to his show to murder the man the caller's girlfriend was cheating with.
And I Must Scream: His predicament was verging on this. He apparently was confining himself to his top-floor radio-station-cum-apartment. The lower levels of the building were utterly infestedwith monsters. He mentions to Murphy that he'd been DJing and spinning records and answering calls continuously for a very long time. Being only human, Bobby was clearly breaking under the strain.
"Is....Is anybody out there?"
Dirty Coward: Perfectly understandable given the monsters, but this seems to be his problem in Silent Hill. For everything he knows about the rules, and that there is a way to escape, he is too petrified to try to escape the building and leave Silent Hill alone. Instead he tries to use Murphy as his means of escaping, and the town, being omniscient, punishes him for this. For refusing to learn whatever lesson it is trying to teach him. As such he seems to be trapped in a Full Circle Ending.
What Happened to the Mouse?: After the Screamers (implied to have been sent by the town itself after Ricks breaks the "rules") attack the studio, he is nowhere to be found, although there are implications that he was dragged off to the Otherworld. Actually its revealed in Anne's Story he survived and was trapped with Anne in a cage in front of the clock of the Centennial building until being disemboweled by Screamers. It is unknown if this genuinely killed him or if he was just sent right back to the station and forced to start his Full Circle fate over again until he got it right.
Karmic Death: Possibly subverted. According to "Anne's Story", "Truth and Justice" is the canon ending, so Sewell killed him, not Murphy. He's still killed, but it's not karmic. Although according to the game's producer Tomm Hulett, he did.
Posthumous Character: He's killed near the start of the game, although, being the one who drove Murphy into the situation he's in, remains significant to the plot.
Predecessor Villain: Was a vicious killer who preyed upon children until he was arrested before the events of the game. Still, his villainous actions give the Big Bad the means he needs to manipulate The Hero into working with him.
Big Bad: He's distant from the actual happenings within the game but he is directly responsible for the conflict between Murphy and Anne. The fact that "Truth and Justice" is the canon ending also means that the plot concludes with him being killed.
Damned by Faint Praise: The nicest thing anyone can say about him as a corrections officer is that he's had perfect attendance.
Dirty Cop: He makes crooked deals with prisoners to get what he wants.
Faux Affably Evil: Does everything with a crafty smile on his face, even though his interests lie solely with himself.
Good All Along: Surprisingly, in the "Execution" ending, he doesn't do anything evil at all besides assist in Murphy's well-deserved execution. He maintains his smug attitude, but in this case his contempt towards Murphy is completely justified.
Manipulative Bastard: Has a history of offering "deals" with prisoners, which saw him trying to get Murphy to murder an innocent man.
Non-Action Big Bad: Although he isn't the main antagonist up front, he, along with Napier, is responsible for the events of Silent Hill: Downpour. He's solidified as this in "Anne's Story", which deems "Truth and Justice" to be the canon ending.
Sir Swears-a-Lot: Sewell is very liberal in his use of curse words and delivers an onslaught directed at Murphy when he refuses to kill Coleridge in return for Sewell's "favor".
Terms of Endangerment: Sewell addressing Murphy as "cupcake." It's more of a condescending and mocking kind of term than it is endearment.
Hoist by His Own Petard: Murphy finishes off the first boss fight by stealing the hammer and laying the smackdown with it.
The Dreaded: Much like Pyramid Head before him, he's an enigmatic, faceless behemoth who lumbers around with a massive weapon and other monsters seem to fear him. Most noticeable in the final boss, when the Prisoner Juggernauts (the strongest non-boss enemies) seem to outright avoid him.
The Heartless: He's a Silent Hill monster, that's part of the job. And then partially deconstructed when it turns out he embodies the dehumanization of objects of revenge — to Anne, he can appear as Murphy, but to Murphy, he can appear as Napier and also as Murphy himself. He is literally a person's idea of evil.
Shock and Awe: Noticeable in his encounters, he'll occasionally generate electricity or static around himself.
The Voiceless: This would normally go without saying, but a surprising number of Murphy's manifestations like to talk to him (Monocle Man (aka Aristocrat), Frank, Blackwood). Not the Bogeyman.
Informed Attribute: Murphy considers her a very loving and forgiving person and thinks that he doesn't deserve her. When the chips are down she blames Murphy for something that wasn't at all his fault, abandons and refuses to forgive him when he writes to her.
Jerkass Woobie: In her grief, she blames and abandons Murphy for not being able to protect their son Charlie from the pedophile murderer Napier.