Cave Johnson

"Heck, suspended as I am in this inky purgatorium, I got nothin' to do but think. What if them engineers didn't do me no favors pourin' me into a computer? What if they denied me my final reward?" - from a leaked portion of the script of Portal 2.

Cave Johnson is the founder of Aperture Science. After being recruited by President Dwight D. Eisenhower to make shower curtains for the United States armed forces (except for the navy), Cave Johnson and Aperture Science became very rich. However, Johnson contracted mercury poisoning while making poisonous mercury-coated shower curtains as "gifts" for several key members of the United States Navy.

A leaked casting call revealed a bit of Johnson's personality, seemingly a fantastic leader, who nonetheless is slightly clueless as to how science actually works. He is said to be from the Southern US and is more than a little reckless.

His last wishes were to make a Take-A-Wish Foundation, which would take wishes from sickly children and give them to healthy adults, the Heimlich Counter-Maneuver, which would block the famous life-saving Heimlich Maneuver, and the Aperture Science Handheld Portal Device, and then expired, probably in the late 1970s.

While the Take-A-Wish Foundation was a failure, the government invested in the Heimlich Counter-Maneuver and the Portal Device. The Heimlich Counter-Maneuver was used against several members of dangerous Middle Eastern terrorist organizations, and the Portal Device was given tons of government funding and eventually came to fruition and was tested by test subjects like Chell in the Aperture Science Enrichment Center.

In Portal 2
Cave Johnson will be a major character in the upcoming game. At this point of the game, he will apparently be a friend of the protagonist and be dead, but has been revived inside of a computer. From a casting call and leaked portions of the script, he appears to function much like GLaDOS did in the first game, initially helping the player before slowly becoming an antagonist while going insane. Cave is helpful towards the player, while simultaneously thinking about the afterlife and other issues, since he can do little other than think, now that he is dead.