gladOS

Just make sure she doesn't start any sadistic experiments, please and thanks.

Joaquin Phoenix deserves some Cake.

Learn how to make your own here.

Reading it is part of the testing. FOR SCIENCE!

Check out Invader Boom's PAX2013 interview with Athena Cole, a design student and Portal fan who quite literally turned herself into the most accurate cosplay of GLaDOS that we've ever seen.