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The Lab Rat comic reveals that, despite his madness, Doug Rattmann identified Chell as a rejected test subject due to her high tenacity, and moved her to the top of the queue for testing. Already skeptical of the computer, the man fled from the gas and kept himself hidden from GLaDOS' view, slowly becoming more insane over an unknown stretch of time. Prior to GLaDOS' rampancy and the neurotoxin release, Doug Rattmann was once an Aperture scientist. Ratman’s full appearance is only seen in the Portal 2: Lab Rat webcomic released by Valve prior to Portal 2 's release to tie the story of the two games together. In the two games there are various "Ratman dens", where Doug Rattmann has left scribblings and paintings on walls in hidden rooms. He was a former scientist working at Aperture and one of the few who survived when GLaDOS flooded the facility with neurotoxin. Unknown (vocalizations in some music tracks)ĭoug Rattmann, often referred to as the " Ratman" is a character in both Portal and Portal 2.
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Michael Avon Oeming (young appearance) ( Portal 2: Lab Rat)Īndrea Wicklund (older appearance) ( Portal 2: Lab Rat) Portal 2: Lab Rat (2011) (first full appearance) Whether they did it intentionally or not is unknown. The only consistent fact that is used through the series is that Chell's parents gave her away. Very little truthful information is known about Chell while GLaDOS makes many statements to Chell's background and history, GLaDOS herself admits she is unreliable. She is a silent protagonist outside of small grunts during physical tasks. Chell is the player-character in both Portal games.
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