Portal 2 characters & testing partners
Meet Chell, the facility voices, the co-op robots and Aperture’s testing companions.
The original 2011 Portal 2 game by Valve. Screenshots on this page show the PC edition.
13 characters · one picture per entry · open a picture for full size.
Characters and familiar faces
Chell
Chell returns as the single-player protagonist, exploring a changed Aperture facility with her portal device and Long Fall Boots.
GLaDOS
Aperture’s familiar testing overseer returns with a redesigned chassis, sharp remarks and a central role in Chell’s journey.
Wheatley
A talkative, blue-eyed core who wakes Chell and tries to help her escape. His improvised plans rarely go smoothly.
Atlas
The round, blue-eyed half of the cooperative testing duo. One player controls Atlas while the other controls P-body.
P-body
The tall, orange-eyed partner to Atlas. Together they use two portal devices to solve a separate set of cooperative tests.
Cave Johnson
An important figure in Aperture’s history whose voice appears in the old laboratory recordings alongside Cave Johnson.
Caroline
An important figure in Aperture’s history whose voice appears in the old laboratory recordings alongside Cave Johnson.
Doug Rattmann
A former Aperture scientist whose hidden dens and wall scrawlings appear behind the test chambers.
Space Core
A yellow-eyed core with an enthusiastic, single-minded fascination with space.
Adventure Core (Rick)
A green-eyed core who talks like a daring action hero and introduces himself as Rick.
Fact Core
A purple-eyed core that recites a stream of supposed facts. Its confident delivery does not make those claims reliable.
Sentry Turrets
Soft-spoken automated guards that track movement with a laser and open fire when a target enters their sight. Shown in their Portal 2 design.
Weighted Companion Cube
A heart-marked puzzle object that helps hold down buttons and becomes an unlikely companion. Shown in its Portal 2 design.
Quick notes
- A story told through the facility. Chell remains the playable test subject in the single-player campaign.
- Recognise a role before approaching. Atlas and P-body belong to the separate cooperative campaign.
- Read the artwork labels. The cast gallery includes the designs used in Portal 2 alongside Doug Rattmann’s portrait from the companion comic Lab Rat.
Use the game-specific references alongside these role notes.