Chell

Chell once visited the Brick Boulevard.

Biography
She was walking through the Brick Boulevard when the Twelfth Doctor, Peter Venkman, and Doc Brown crashed their vehicles into each other. (WC: Doctor, Doctor, Doctor)

Information from invalid sources
Chell was present near the Twelfth Doctor when a child scanned Scooby-Doo and the Mystery Monster onto a toy pad. She had since been moved onto the pad when the room dissolved and revealed them to be in the Land of Oz. (WC: Endless Awesome)

Other matters
Chell is the main protagonist in the Portal franchise.