There is more than one artist with this name:
1) A hardcore band from the US.
2) A Japanese New Wave band formed in 1980, including former City Pop singer 佐藤奈々子 (Nanako Sato). They released one self-titled album before Sato left the band to pursue a career in photography in Paris.
4) Spy was a Swedish punk band from Linköping. One 7" EP was released in 1980.
5) Spy is a South London (UK) based, independent beatmaker, producer and engineer.
6) Spy is an alternative rockband from Copenhagen.
7) Spy is an alias of Stakka & Skynet
8) S.P.Y, drum and bass producer signed to Hospital Records