Chell is the silent protagonist in the Portal video game series developed by Valve. She appears in both Portal and Portal 2 as the main player character and as a supporting character in some other video games. Not much is known about Chell but some posit she is the daughter of an employee at Aperture Science Laboratories, the main setting of the games. Chell's face- and body-model were derived from those of Alésia Glidewell. She experienced a redesign in Portal 2 which was often changed during development. For example, the original redesign featured a laboratory-hat. A character presented in first-person perspective, Chell can only be seen through reflections and portals in the game. Chell was generally well-received by critics and gamers, with many people praising the fact that she does not speak and looks like a "normal-looking and normal-dressing woman" in contrast to many other female characters in first-person shooters. Source : Wikipedia (en)