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Characters of Portal

Doug Rattmann
Portal character
First appearance Portal (2007) (wall scribblings only)
Portal 2: Lab Rat (2011) (first full appearance)
Designed by Michael Avon Oeming (young appearance) (Portal 2: Lab Rat)
Andrea Wicklund (older appearance) (Portal 2: Lab Rat)
Voiced by Unknown (vocalizations in some music tracks)
Caroline
Portal character
First appearance Portal 2 (2011)
Created by Jay Pinkerton
Voiced by Ellen McLain (uncredited)
Personality Cores
Portal character
First appearance Portal (2007)
Voiced by Ellen McLain (Curiosity Core; Intelligence Core)
Mike Patton (Anger Core)
Nolan North (Corrupted Cores)
Stephen Merchant (Intelligence Damphening Sphere)
ATLAS and P-body
Portal character
First appearance Portal 2 (2011)
Designed by Tristan Reidford
Voiced by Dee Bradley Baker
Weighted Companion Cube
Portal character
First appearance Portal (2007)
Created by Erik Wolpaw
Kim Swift
Designed by Scott Klintworth
Aperture Science Sentry Turret
Portal character
First appearance Portal (2007)
Designed by Scott Klintworth
Voiced by Ellen McLain (Regular Turrets; Oracle Turret; Opera Singer Turret)
Nolan North (Defective Turrets)

The following is a list of characters in Portal and Portal 2, both developed and published by the Valve Corporation.

Chell is the player-character in both Portal games. She is a silent protagonist outside of small grunts during physical tasks. 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. The only consistent fact that is used through the series is that Chell's parents gave her away. Whether they did it intentionally or not is unknown.

Doug Rattmann, often referred to as the "Ratman" is a character in both Portal and Portal 2. He was a former scientist working at Aperture and one of the few who survived when GLaDOS flooded the facility with neurotoxin. In the two games there are various "Ratman dens", where Doug Rattmann has left scribblings and paintings on walls in hidden rooms. Ratman’s full appearance is only seen in the Portal 2: Lab Rat webcomic released by Valve Corporation prior to Portal 2's release to tie the story of the two games together. Ratman is the comic’s main character. Prior to GLaDOS' rampancy and the neurotoxin release, Doug Rattmann was once an Aperture scientist. 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.

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. During events in Portal, he worked behind the scenes to scribble messages and warnings to Chell on the walls, leading her out of the testing chambers and towards GLaDOS. After watching her defeat the computer, he managed to escape the facility, but returned to assure Chell would be put in indefinite cryogenic storage animation after she was dragged back inside, suffering a serious injury (a shot in the leg from a turret) to complete this. In the last panel of the comic, Doug Rattmann places himself in cryogenic storage animation. His fate by the events of Portal 2 is unclear, though more of the Ratman dens can be found.

Among the wall scribblings in the Portal dens is the sentence "The cake is a lie", which became an internet meme. The scribblings also include pastisches of several poems, including W. H. Auden's "Funeral Blues", Emily Brontë's "No Coward Soul Is Mine", Emily Dickinson's "Because I could not stop for Death", and Henry Wadsworth Longfellow's "The Reaper and the Flowers". Among the scribblings there are also pictures of a family watching television in the 1950s, and pictures of portraits of Sam Rayburn, Theodore Roosevelt, and Calvin Coolidge. Doug Rattmann has pasted pictures of companion cubes on their heads. The dens in Portal 2 contain paintings of Doug Rattmann among the scribblings. In one of those dens, The National's song "Exile Vilify" can be heard from a radio. Some of the song’s lyrics are scribbled on the walls of the den. This song was exclusively written for Portal 2.


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