Isaac Clarke, an engineer, is the protagonist

Protagonist

A protagonist is the main character of a literary, theatrical, cinematic, or musical narrative, around whom the events of the narrative's plot revolve and with whom the audience is intended to most identify...

 of the Dead Space (series)

Dead Space (series)

Dead Space is a media franchise created by Glen Schofield, developed by Visceral Games and published by Electronic Arts. The franchise centers on a series of video games of the survival horror and third-person shooter genres, and also includes two motion pictures and a comic book series, with more...

 where he confronts the Necromorphs. He is not voiced in the first game, but is voiced by Gunner Wright

Gunner Wright

Gunner Wright is an American film actor known for his role in the film Love and for "portraying" the face and voice of Isaac Clarke in the videogame Dead Space 2. Wright raced motorcycles competitively until the age of 21 when he moved to Southern California. There he began working on Fox...

 in the second.

Before Dead Space

Isaac was an engineer working by freelance. He was in a relationship with Nicole Brenner who was soon to board the USG Ishimura as a medic for the crew. Isaac was to propose to her but when she announced her leave, he decided to wait till she came back. After the rise of the Necromorphs on board, Isaac is sent in with Zach Hammond and Kendra Daniels to help out the Ishimura, unaware of the infection on board.

Dead Space

During the events of the first game, Isaac is completely silent except for grunts of pain or frustration. Isaac is sent as an engineer to assist Daniels and Hammond while fixing the ship. Isaac confronts the monster or "Necromorphs", though the series does not directly call them that. Isaac is split from Hammond and Daniels and decides to take orders from them through video logs. He combats the Necromorphs using special futuristic tools like pulse rifles and plasma guns. When Isaac meets with Hammond, Hammond is attacked by a "Brute" and is killed. Overtime, Isaac meets with Nicole who is shown to be alive. She convinces him to destroy the Marker because it is the cause of the infection. Daniels also reveals herself to be an operative for the EarthGov who want the Marker despite it's evil nature. When Isaac is trying to destroy the Marker, Nicole suddenly disappears. Daniels confronts Isaac and shows him the rest of the video as Nicole commits suicide to escape infection. Daniels is killed by the Hive Mind, a large Necromorph underneath the station and Isaac then battles and kills the beast. Isaac tries to escape through a small ship on deck. He gets aboard and leaves the Ishimura. He watches a video of Nicole again and this time deletes it and looks on in anguish. He hears something behind him and turns around to see a demonic hallucination of Nicole who attacks him.

Before Dead Space 2

Isaac does escape but is taken by the scientists of The Sprawl who find him in the drifting escape ship. They use Isaac for copying the Marker codes in his mind to create a replica, in which they succeed. In Dead Space Ignition

Dead Space Ignition

Dead Space Ignition is a survival horror action puzzle video game developed by Visceral Games and Sumo Digital and published by Electronic Arts for the Xbox Live Arcade and the PlayStation Network. It is a midquel to the survival horror third-person shooter video game Dead Space 2 , which was...

, the Sprawl is taken over and Franco Delile and his partner, Sarah, try to escape the infection. Sarah dies but Franco manages to come to Isaac and free him. During that time though, Dead Space: Aftermath

Dead Space: Aftermath

Dead Space: Aftermath is an animated film that bridges the storyline between Dead Space and Dead Space 2.-Plot:When contact with the USG Ishimura and the Aegis VII colony is lost, the Concordance Extraction Corporation sends the ship USG O'Bannon to investigate...

 occurs and during that time, Nolan Stross who had also come in contact with the Marker, had been stowed away like Isaac and had been used for the replica Marker.

Dead Space 2

Isaac immediately escapes (while Franco dies) and begins searching the ship. He meets Daina, a woman who tells him that she can help him rid his dementia

Dementia

Dementia is a serious loss of cognitive ability in a previously unimpaired person, beyond what might be expected from normal aging...

. Along the way to her, he meets Stross who was freed by Ellie Langford, an equipment pilot. When Isaac reaches Daina, she double crosses him and tells him that she is a unitologist and she wants Isaac for the Marker. The guard ship comes and kills Daina and her guards but Isaac escapes. Isaac is also being haunted by the demonic form of Nicole who keeps attacking him. Isaac, Ellie and Stross regroup but after the split, Ellie is attacked by a deranged Stross who pulls her eye out and leaves. Isaac confronts Stross and is forced to kill him when he attacks. Isaac finds the Marker Replica but is forced to battle the badly injured Director of Authority, Hans Tiedemann, who has tried to hunt Isaac down the whole game. Issac is able to defeat Tiedemann using the javelin gun Tiedemann wields and kills him. Isaac is stopped by demonic Nicole who then fights Isaac inside his own conscience. Isaac successfully beats Nicole and lets her memory go away and gets rid of his dementia. Isaac stands down after beating Nicole and the area begins to collapse. Ellie arrives in a ship and saves Isaac and the two leave the self-destructing Sprawl.

Personality

Isaac is shown to be depressed and non-talkative at all in the first game. He also has a deep obsession with watching a video of his girlfriend Nicole who is aboard the ship, though this is due to his sadness of having to let her go for her job opportunity. In Dead Space 2

Dead Space 2

Dead Space 2 is a survival horror third-person shooter video game developed by Visceral Games and published by Electronic Arts for Microsoft Windows, PlayStation 3 and Xbox 360. It is the sequel to Dead Space. Unlike its predecessor, Dead Space 2 has a multiplayer mode. A Collector's Edition is...

, Isaac is shown to be more frustrated and scared and left with dementia

Dementia

Dementia is a serious loss of cognitive ability in a previously unimpaired person, beyond what might be expected from normal aging...

 due to his last encounter with the Necromorphs, though he comes up with witty remarks and has sarcasm

Sarcasm

Sarcasm is “a sharp, bitter, or cutting expression or remark; a bitter jibe or taunt.” Though irony and understatement is usually the immediate context, most authorities distinguish sarcasm from irony; however, others argue that sarcasm may or often does involve irony or employs...

 as well.

Necromorphs

Necromorphs are the main enemies of the game and look to kill any regular human. Necromorphs are not referred to as their names in the series, but are called that from fans and the developers of the game. Necromorphs are the dead reanimated bodies of the USG Ishimura crew. They are created from the effects from the Red Marker. Necromorphs come in different forms depending on the bodies shape after death. They are also created from their own kind called "Infectors" who fly around and find dead bodies to stick their proboscis

Proboscis

A proboscis is an elongated appendage from the head of an animal, either a vertebrate or an invertebrate. In simpler terms, a proboscis is the straw-like mouth found in several varieties of species.-Etymology:...

in their head and spread the infection. Isaac fights all forms of Necromorphs as he goes along and due to his experiences with them, he is most likely the best combatant to them then any other character in the series.The biggest Necromorphs are the Hive mind,Leviathan,and slug .

Notable Necromorphs in Dead Space

• Infector:The main source of infecting dead bodies.
• Slasher:A humanoid like Necromorph that has deformed arms that it uses to kill victims.
• Brute:A large Necromorph composed of many bodies.
• Divider:A frail and heavily disfigured Necromorph that is composed of several spider like creatures.
• Guardian:This Necromorph is stuck to the wall due to the curruption.
• Lurker
• Exploder
• Drag Tentacle
• Pregnant
• swarmer
• Leaper
• Curruption
• Twitcher