Chell - Portal. She is the silent protagonist of Portal and the single-player campaign in Portal 2. Very little is known of her past, beyond her possible abandonment at birth and her stubborn will to live.

Chell Portal 2

Chell reference sheet, both Portal and Portal 2.

Half-Life Wiki is a comprehensive database focusing on the legendary, science-fiction universe of first-person shooters, created by [[Valve Corporation]] in 1998 with the release of ''[[Half-Life]]'' on the PC platform. The story spans five main story arcs, each stemming from a game: ''Half-Life'', ''[[Half-Life 2]]'', ''[[Portal]]'', ''[[Portal 2]]'' and more recently ''[[Half-Life: Alyx]]''.

Portal 2: Lab Rat is a comic made to bridge the gap between Portal and Portal 2. Expanding the history of Aperture Science, its main protagonist is Doug Rattmann, also known as "the Ratman" or "Rat Man". This is his first formal appearance after indirectly appearing in Portal and the Portal ARG. The first part of the comic was published April 8, 2011; the second part was released April 11, 2011. Lab Rat is a full in-house production that was entirely supervised by Valve. It was drawn by…