Doug Rattmann

"The cake is a lie."

- Doug Rattmann

Doug Rattmann, also known as the Ratman, is a former Aperture Science employee, and the only apparent survivor of GLaDOS's flooding of the Enrichment Center with neurotoxin. Introduced through his murals in Portal, his story was expanded in Portal 2: Lab Rat.

Background
When working for Aperture, Rattmann was charged with the maintenance of the Aperture Image Format, an interactive graphics format created in 1985. He had access to Aperture Science's bulletin board system, with the login "drattmann" and the password "h0nee". He apparently never directly took part in GLaDOS's construction.



At some point late in GLaDOS's construction, Doug went to see his colleague Henry while he was working on the AI in her chamber. Henry praised their technological advances, stating that artificial consciousness is the next frontier. Doug was not convinced by the progress, since GLaDOS attempted to kill everyone each time she was turned on, forcing them to switch her off. Later, Doug came across Henry while he designing the Morality Core. Henry asked him to turn it on, then Doug asked him what it was, to which Henry answer it was the latest in AI inhibition technology, that it would act on GLaDOS as her conscience. Rattmann believed it was insufficient to stop her murderous intentions, arguing that "you can always ignore your conscience".



When GLaDOS was activated in 200-, she became self-aware, locked down the facility, and flooded the Enrichment Center with deadly neurotoxins. Rattmann was one of the only survivors, and GLaDOS turned onto taunting him about his schizophrenia. She attempted to convince him that his situation was a result of paranoia, but he ignored her, and got a hunch about a Test Subject, Chell, who he thought could make a difference. He fled to the file room and found her file. In it, he read that Chell should not be tested, as she is abnormally stubborn and never ever gives up. Convinced she is the one he needs to stop GLaDOS, he put her on top of the Test Subject list, so that she would be the first to be picked in the next test.

Rattmann then spent the next several months surviving in the Test Chambers and maintenance areas of Aperture. Having only two pills left, he kept them for the day GLaDOS would wake Chell. Consequently, he slowly lost his sanity, his schizophrenia completely taking over him. He spent hours scribbling on walls, painting murals, graffiti and arrows and hints for the day Chell would wake up and try to escape, and became obsessed with the Companion Cube that his schizophrenia made talk to him and give him advice, acting as his conscience. It also appears he had several Cubes, as his scribblings show him mourning over the loss of one.

Portal


Although unseen for the entirety of Portal, Rattmann is made aware to Chell through his "Ratman dens", where each time he appears to have been living for a while (sleeping on unfolded Aperture Science boxes, eating beans and drinking milk and water), and where his frantic scribblings and graffiti can be seen abundantly. The first den is found near Test Chamber 16, behind a broken wall held open by two Weighted Storage Cubes. It is here that the well-known statement "the cake is a lie" is written in black. The scribblings in Test Chamber 17 reveal further information, notably his obsession with the Companion Cube.

After Chell escapes incineration at the hands of GLaDOS in Test Chamber 19, she finds more and more of Rattmann's scribblings of help and warning, and the directions he previously laid to guide her through the hazardous innards of the facility.

Rattmann's hints stop just before GLaDOS's massive Sentry Turret ambush, suggesting he was unable to go on due to his lack of equipment against the Turrets, and that he trusted Chell to overcome them with her stubbornness and above all her ASHPD.

Portal 2: Lab Rat


In Portal 2: Lab Rat, Rattmann is shown to be observing Chell during her quest through the final stages of Portal, and taking his two last pills he was saving for that day. After she destroys GLaDOS, he follows her to the surface and thinks about taking the opportunity to escape once and for all, but upon seeing her being dragged back inside by the Party Escort Bot, he starts to feel guilty, feeling he is responsible for her predicament (as he put her on top of the Test Subject list), and goes back into the facility to rescue her, despite his Companion Cube being against going back.

Back in the facility, he discovers that Chell has been placed in a Cryo-Chamber. He soon discovers that GLaDOS's explosion blew the main grid, and that all the Cryo-Chambers are off-line. He attempts to reach Cryo-Control to rescue Chell, but without the advice of his Companion Cube, which is no longer talking due to the anti-psychotic pills he previously took, he is incapable of selecting the right way, and is shot in the leg by a Turret, and falls unconscious. Upon regaining consciousness, he is back into his psychosis, discovering that he can no longer rescue Chell. However, the Companion Cube tells him that he can save her by patching her Cryo-Chamber into the Reserve Grid, placing her in stasis for an unspecified amount of time, but saving her from death. After doing so, he goes to sleep in a Relaxation Vault.

Portal 2


Rattmann is said to have died some time after saving Chell, suggesting he healed from the wound inflicted by the Turret in Lab Rat.

Additional scribblings are slated to be seen in Portal 2, indicating his survival. Furthermore, one of the Portal 2 Achievements requires to find the hidden signal in one of Rattmann's dens. The Achievement icon is similar to that of the "Transmission Received" Achievement added to Portal during the Portal ARG, suggesting that an Aperture Science Radio might be found in the den.

Appearance
As seen in Portal 2: Lab Rat, Rattmann appears to have heterochromia - A condition in which each eye has a different-colored iris. His errancies in the Enrichment Center and his slow loss of sanity made his face unrecognizable, gaunt and exhausted, with disheveled hair and beard, while he remained in scientist attire (labcoat and shirt), likely the most available outfit in the facility.

Personality and skills


Prior to the activation of GLaDOS, despite already being schizophrenic and taking medication, Rattman was rather normal, and was skeptical and worried with the work on GLaDOS, believing that conscience was not enough to stop her, as opposed to Henry's enthusiasm. However, as time passed when he was trapped in the facility, he grew increasingly insane, and started being obsessed with the Companion Cube, making it work as his conscience.

The scribblings seen in Portal show that Rattmann is an educated man, quoting both Dickinson and Longfellow to express himself over the loss of his Weighted Companion Cube, as well as a small reference to Auden. Aside from his scribblings, Rattmann appears to have adept technical skills. Apparently using the login name and password he managed to procure, he was able to open up certain wall sections in Test Chambers, make Vital Apparatus Vents dispense more Weighted Storage Cubes, and take pictures of the Companion Cube (probably by using the cameras in the Test Chambers). He is also able to create makeshift stoves out of computer heat sinks.

Behind the scenes



 * The username "cjohnson" and password "tier3" can be used on ApertureScience.com to gain administrator access. It is possible the hacker who posted the message about the lockdown access with the command  is Rattmann himself.


 * Portal features six Ratman dens. The first can be found near Test Chamber 16 (in " "), the second near Test Chamber 17 (in " "), the third near Test Chamber 18 (in " "), the fourth (in " "), fifth and sixth (in " ") in the maintenance areas.


 * A Portal: Still Alive Achievement named "Rat's Tale" requires to find all of the Ratman dens. Its logo reuses a texture seen in-game.


 * When Portal 2 was officially announced on March 5, 2010, several alphanumerics were underlined in the text, as part of the Portal ARG. When reorganized together, these letters gave the words "drattmann" and "h0nee", which are a second set of usernames and passwords (belonging to Doug Rattmann) for the BBS number (425) 822-5251. Upon entering them, one has access to data that will eventually give access to a program to read Aperture Image Format files.

Graffiti list
What follows is a list of all graffiti, scribblings and Aperture Science posters left by the Ratman in his dens. The texture files are used for better clarity.

List of appearances

 * Portal
 * Portal: Still Alive
 * Portal ARG
 * Portal 2: Lab Rat
 * Portal 2