Andrea Wicklund is an illustrator working at Valve since December 2006. She currently lives in Seattle.
Wicklund has a BFA in Illustration from the Academy of Art of San Francisco, which she attended from 1999 to 2003.
She drew the main story of Portal 2: Lab Rat, with Michael Avon Oeming for the flashbacks.
Her right hand was also used for the hand featured on the cover of Left 4 Dead.
She makes art for other various companies, and has been showing her art in exhibitions since 2003.