- You may be looking for the feature from The Dalek World or the short story.
Know Your Enemy was a series of informational "fact files" about various enemies encountered by the Doctor. The series originated as part of the UNIT Hotline feature in early issues of Doctor Who Weekly (later Doctor Who Monthly and Doctor Who Magazine) from issue 26 through issue 47. It then returned for the celebratory issue 350.
In the 21st century, the feature was continued in a handful of revival Doctor Who annuals. Doctor Who The Official Annual 2016 renamed the series Black Archive, though the content remained the same. The original name returned in the 2021 annual.
| Publication | Feature | Featured enemy |
|---|---|---|
| DWM 26 | Know Your Enemy No.1 Dalek | Dalek |
| DWM 27 | Know Your Enemy No.2 Ice Warrior | Ice Warrior |
| DWM 28 | Know Your Enemy Sontaran | Sontaran |
| DWM 29 | Know Your Enemy No.3 Voord | Voord |
| DWM 30 | Know Your Enemy No.4 Robot K~1 | K1 |
| DWM 31 | Know Your Enemy No.5 The Fish People | Fish people |
| DWM 32 | Know Your Enemy No.6 Robots of Death | Robots of Death |
| DWM 33 | Know Your Enemy No.7 The Cybermen | The Cybermen |
| DWM 34 | Know Your Enemy No.8 The Spiders | The Spiders |
| DWM 35 | Know Your Enemy No.9 The Silurians | The Silurians |
| DWM 36 | Know Your Enemy No.10 The Ogrons | The Ogrons |
| DWM 37 | Know Your Enemy No.11 Eldrad | Eldrad |
| DWM 38 | Know Your Enemy No.12 The Axons | The Axons |
| DWM 39 | Know Your Enemy No.13 The War Machine | The War Machine |
| DWM 40 | Know Your Enemy No.14 Autons | Autons |
| DWM 41 | Know Your Enemy No.15 Krynoids | Krynoids |
| DWM 42 | Know Your Enemy No.15 Movellans | Movellans |
| DWM 43 | Know Your Enemy No.16 The Master | The Master |
| DWM 44 | Know Your Enemy No.17 The Nimon | The Nimon |
| DWM 45 | Know Your Enemy No.18 The Mandrels | The Mandrels |
| DWM 46 | Know Your Enemy 19 Primords | Primords |
| DWM 47 | Know Your Enemy The Guardian | The Guardian |
| DWM 350 | Know Your Enemy No.21 The Myrka | The Myrka |
| Doctor Who The Official Annual 2007 | Know Your Enemy | Cassandra, Krillitane, Ood, Slitheen, Daleks, Cybermen |
| Doctor Who The Official Annual 2008 | Know Your Enemy | Carrionites, Weeping Angels, Family of Blood, Slitheen, Judoon, Dalek Sec, Racnoss |
| Doctor Who The Official Annual 2009 | Know Your Enemy | Max Capricorn, Sontarans, Hath, Adipose, Pyroviles, Vespiform, Davros |
| Doctor Who The Official Annual 2011 | Know Your Enemy | Smilers, Daleks, Weeping Angels, Silurians, Vampires, Dream Lord |
| Doctor Who The Official Annual 2016 | Black Archive | Daleks, Foretold, Boneless, Cybermen, Dream crabs, Weeping Angels |
| Doctor Who The Official Annual 2021 | Know Your Enemy | Kasaavin, Dregs, Skithra, Reconnaissance Dalek, Judoon, Praxeus, Chagaska, Ashad, CyberMasters |