- Fokin, Vladimir5
- Pacepa, Ion Mihai3
- Costello, John2
- Hutton, Joseph Bernard2
- Kostov, Vladimir2
- Le Carré, John2
- Lonsdale, Gordon Arnold2
- Page, Bruce2
- Shevchenko, Arkady N.2
- Stevenson, William2
- Zolling, Hermann2
- Bar-Zohar, Michael1
- Boltanski, Luc1
- Boyle, Andrew1
- Brook-Shepherd, Gordon1
- Chambers, Whittaker1
- Cline, Ray S.1
- Deighton, Len1
- Divine, Robert A.1
- Dobson, Christopher1