| 2026-03-31 | Undercover operatives |
| 2025-04-18 | Plants, maybe |
| 2024-12-20 | Masters of disguise |
| 2024-08-30 | Many John le Carré characters |
| 2023-12-27 | Secret traders |
| 2022-05-24 | People who might bug others |
| 2017-09-26 | John le Carré heroes |
| 2016-12-03 | Spooks |
| 2016-01-24 | Secret collectors |
| 2015-08-10 | 007 and others |
| 2013-02-03 | Some "Bourne" film characters |
| 2011-09-16 | They may work for both sides |
| 2011-05-26 | Fears of some paranoiacs |
| 2010-04-21 | Black and white Mad magazine figures |
| 2009-04-21 | Black-clad and white-clad Mad adversaries |
| 2005-10-21 | Uses a tap, perhaps |
| 2000-04-09 | Those seeking intelligence |
| 1999-07-18 | Spooks |
| 1998-10-07 | People who aren't what they seem |
| 1996-08-03 | Shadows |
| 1995-04-17 | Cloak-and-dagger types |
| 1995-04-15 | Spooks |
| 1995-02-26 | 1928 Fritz Lang thriller |
| 1994-01-17 | Sometimes they get the hang of it |