more frivolous february

Captain Picard has an artificial heart because a member of what species stabbed him?
( answer )

Who built C-3PO?
( answer )

What does Major Carter give as her cover story for the subject of studies being conducted at Cheyenne Mountain?
( answer )

if you want to know where these come from, here are the links (spoilers for a lot of things);
star trek trivia
star wars
stargate: sg-1