I know that there were no other test subjects alive in Portal 2 (excluding the ones in the co-op), but were there other test subjects alive in Portal? You never see them or anything that would suggest their (living) presence in the facility. I would imagine that GLaDOS had other test subjects since GLaDOS had planned to kill you. But is there any proof of other test subjects?

I am not referring to the ones found in co-op in the 1950s cryogenic freezing. I am asking if there are any alive in the more recent Aperture Science testing course excluding the ones from co-op. (directly after GLaDOS had been activated)

  • huh? I thought there were other living test subjects in Portal 2, but they're just frozen. Nov 7, 2011 at 8:25
  • 4
    @BlueRaja LAB RAT suggests that life support in every other stasis chamber was shut down - which explains Wheatley ranting about it when you first meet him. Nov 8, 2011 at 0:16

6 Answers 6


There is no proof that GLaDOS had other living test subjects during Portal's timeframe. In fact, the comic that bridges the two games (Lab Rat) seems to specifically indicate that there weren't any humans alive in the facility except Chell and Doug Rattmann (Rattmann is not/never was a test subject).

  • 6
    I believe this is the link to the comics, thinkwithportals.com/comic for those who are interested
    – Rapida
    Nov 7, 2011 at 5:02
  • 2
    I don't think this is true because Rattmann sets Chell to the top of the testing list so that GLaDOS would test her first and would defeat GLaDOS before too many of the other test subjects died.
    – m.n.wiser
    Nov 11, 2011 at 1:47
  • Chell is in suspended animation in the relaxation vault between that moment and the start of Portal; she was no longer with the other test subjects that were still in storage. I suppose it's possible the other subjects were alive, but my answer still stands in regards to your original question; "...is there any PROOF of other [living] test subjects?": no.
    – Nacimota
    Nov 14, 2011 at 16:56

In the original Portal there was a clipboard with a humanoid figure on it (probably representing Chell) and another clipboard with a chicken-like figure on it. It is not clear if this represents a normal chicken or some sort of mutant chicken. However the clipboard implies that this chicken is yet another test subject, albeit not a human test subject.

The Portal Game Wiki mentions this clipboard: http://portalgame.wikia.com/wiki/Chicken

Here is a screenshot of the Chicken subject's clipboard: The clipboard of the failed Chicken test subject in Portal

Here is a screenshot of the Human subject's clipboard: The clipboard of the successful Human test subject in Portal

  • 2
    can you add a screenshot of this?
    – Zommuter
    Jan 28, 2012 at 21:43
  • Sure I'll fire up Portal tonight and see if I can find it. I seem to remember it being towards the end of the game, after Chell goes behind the facade of the Test Chambers.
    – voidstar69
    Jan 30, 2012 at 14:29
  • I've posted the screenshots above. This proves that there was at least one other test subject alive in Portal, albeit not human.
    – voidstar69
    Jan 31, 2012 at 12:27
  • thanks, I wonder: could this also be a Vortigaunt?
    – Zommuter
    Jan 31, 2012 at 12:59

There must be hundreds of test subjects during Portal's timeframe because they are present in Portal 2 co-op. I don't think they could have gotten in the AS Vault after the events of Portal.

  • I think that Wheatley says that they all died during the initial events of Portal 2 Nov 8, 2011 at 0:58
  • 1
    Wheatley didn't know about test subjects in the Vault I guess. Anyway, we unlock them in coop which happens after the events of singleplayer campaign.
    – Air
    Nov 9, 2011 at 16:01

In Portal Stories, A test subject named Mel and another core defeat a security system (not GLaDOS) that was

trying to kill GLaDOS.

When they defeat it the computer says there were three intelligences in the lab - one of them was GLaDOS. Mel and the Core gave her a sportting chance to recover, and that was what woke up Chell.


There were other test subjects alive but most if not all died between the events of portal and portal 2. This is because they were other test subjects in the relaxation vault but died after being in suspended animation for too long which is stated by Wheatly. Also, Chell's name was put at the top of the testing list so that she was tested first so it's likely that none of the suspended test subjects were active during portal.


During the events of Portal: Still Alive and Portal 2, most people believe everyone else apart from the main protagonist of the series, Chell. But there is evidence of another person by the name of Doug Rattman, a scientist who survived the choas of GLaDOS after it released Neurotoxin onto Aperture Science. Doug Rattman's backstory suggests he was trapped in Aperture Science after the chaos GLaDOS left with the facility. He changed the test subject order and made Chell first in line for testing as Rattman believed Chell could stop GLaDOS. After the events of Portal: Still Alive, Chell was put into sleep and Doug saved her by restoring the power on her relaxation room only before being shot by an Aperture Science Centry-Turret. Many years past and Chell finally woke up to a very interesting character.

So in conclusion, apart from Chell, only Doug survived. I hope this helped you.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .