Gwent spy cards can be placed on your opponent's battlefield (and count towards your opponent's total) but allow you to draw 2 extra cards from your deck. The Monster, Scoia'tael, and Skellige factions don't have their own spy cards but can make use of the one neutral card and any that are played by their opponent.
|Mysterious Elf||Hero||0||Gwent: Skellige Style, won from Gremist in Gedyneith||Neutral card|
|Prince Stennis||Unit||5||Part of the base deck|
|Sigismund Dijkstra||Unit||4||Gwent: Velen Players, won from The Bloody Baron in Crow's Perch|
|Thaler||Unit||1||Purchase from Innkeep in Arinbjorn|
|Shilard Fitz-Oesterlen||Unit||7||Random, from playing a craftsman or merchant|
|Stefan Skellen||Unit||9||Random, from playing a craftsman or merchant|
|Vattier de Rideaux||Unit||4||Random, from playing a craftsman or merchant|