Erin Mudry

Chell

Cate Richardson

Chell (Double)

J.D. Dueckman

Wheatley

Fairlith Harvey

GlaDOS/Caroline

Greg Delmage

Cave Johnson

Stephen Blakley

Adventure Core

Andrew Lynch

Fact Core

Chris Nyarady

Space Core

Patrick Courtin

Doug Rattman

Patrick Courtin

Doug Rattmann

Jason Marnocha

Announcer

Fairlith Harvey