Gwen DeMarco is a fictional actress that portrays Lt. Tawny Madison, the fictional heroine of the fictional television series Galaxy Quest and the computer officer of the NSEA-Protector, portrayed by Sigourney Weaver in the 1999 satirical science fiction film, also titled Galaxy Quest.
Gwen DeMarco has been suggested to play 11 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.
