|Chronological and political information|
Dr. Isabel Cho was one of the four protagonists in Dead Space: Aftermath.
Isabel Cho was the Chief Medical Officer on board the USG O'Bannon. She was one of the few crewmates besides Nolan Stross, Rin, Nickolas Kuttner and Captain Caleb Campbell to know about the true mission of gathering Marker fragments.
The crew landed on an unstable Aegis VII and headed out to look for the surviving fragments of the Red Marker, Kuttner finds one of them and starts to hallucinate Cho and her teammates as monsters, going so far as killing Alejandro Borges' cousin Noah Pawling. Cho tries to save Noah, but it was too late. Aegis VII then begins to explode and only her, Stross, Borges and Kuttner survive, crashing back into the O'Bannon and giving the Marker fragment to the captain.
Cho then takes care of a very confused and disorientated Kuttner whilst overseeing the bodies of all those that were killed on Aegis VII. She and Stross meet in the lab and have sex, revealing their ongoing affair. She is in love with him, but notices his strange behavior after he came into contact with the Marker. Cho and her medical team then go to check on the bodies at the morgue only to discover that they are all gone. Suddenly, the mutilated corpse of one of the doctors transforms into a Necromorph and slaughters Cho's team as she escapes. Cho makes it to the room where Kuttner is being held and releases him, and he helps kill the Necromorph. Isabel and Kuttner make it to Stross' suite to discover that he has killed his wife Alexis and their infant son under the delusion that they were necromorphs. Cho is horrified by this and refuses to talk to him throughout the outbreak.
Isabel, Stross and Kuttner are then reunited with the Captain, Alejandro and two other crew members, Lt. Marcus and Lana. Through Stross, they discover that the outbreak can only be contained if they throw the Marker fragment into the engine. The team set off towards the engine room, but Lana is killed by the Grabber that was formerly her roommate. Lt. Marcus is soon after killed when a Necromorph attacks him which leads to him being sucked out of the hull's breach and into space. Kuttner is almost sucked out of the ship as well, but is reluctantly saved by Borges. After the remaining survivors make it into the airlock, Stross gives them the unfortunate news that the airlock's seal is broken on their side, and that it can only be sealed from the outside.
Feeling guilty and responsible for all of the deaths of his crew on Aegis VII and on his ship, Captain Campbell then volunteers to be the one to seal the airlock. After arguing with his remaining shipmates, the captain orders them to destroy the Shard. As he exits the airlock, he tells them to tell his wife that she was right and that he should have retired before journeying to Aegis VII.
After sealing the doors, he pulls out an incendiary grenade and jumps into the crowd of Necromorphs and causes a second hull breach outside of the sealed door, causing all of the remaining Necromorphs to fly into space. Cho then collapses as the Captain sacrificed himself to save them. The group then make it to the engine room just to be attacked by several Necromorphs.
Cho and the others manage to keep them at bay, but Stross once again becomes hypnotized by the fragment, unable to throw it into the engine. Cho responds to this by running up to Stross and punching him, grabbing the fragment. Before it can have any effect on her, she tosses it into the engine, destroying it and all the Necromorphs, turning them into small puddles of what has been described as "organic soup" by other witnesses.
Discovery and interrogationEdit
A squad of five Marines then enter the O'Bannon to discover that all crew members are dead except four. The guards then taze Cho, Stross, Borges and Kuttner and take them aboard the USM Abraxis. After Borges and Kuttner don't return from their interrogations, Cho begins to worry. Stross replies by telling her that they are dead, as he can "feel" it.
After Stross is interrogated and put into cryo-stasis, Isabel is next. She is confronted by a member of EarthGov, the Overseer, who offers her a job in return for helping cover up everything that happened, revealing that the whole event was planned and every crewmember a test subject for the Marker's effects. A horrified Cho angrily declines. The Overseer then tells her that he is sorry she feels that way before she is grabbed and lobotomized in order to keep her quiet.
Cho was eventually used by EarthGov to cover up the planet crack incident of Aegis VII and the Necromorph outbreak, blaming her for a "terrorist attack" that killed all the people aboard the Ishimura and the O'Bannon. She was unable to defend herself from these accusations as she was given a lobotomy, which limited her brain function and made her the perfect scapegoat.
- Isabel Cho is voiced by Gwendoline Yeo, and her CGI-animated character is also based on her likeness.
- Cho's appearance differs in each scenario.
- Cho is one of the five female protagonists of Dead Space besides Alissa Vincent, Lexine Murdoch, Karrie Norton and Ellie Langford.
- Unlike the other three survivors of the O'Bannon, Isabel's exact phobia is never revealed, as it just skips over to the scene where she is gasping for air. This may be hinting towards hydrophobia.
- In Dead Space 2, she is only mentioned in the name of an audio log.
- In the falsified news report branding her a terrorist, an image of her is shown with a blank expression and a red spot of her forehead, evidence of her lobotamy.
- It is suggested that Cho has a Korean background as she states she can only speak English and Korean.
- Cho was involved in an affair with Nolan Stross for seven months. Stross tells Cho he was going to leave his family, but Cho tries to distance herself from Stross for this reason, ultimately failing.