UNIT/Appearances

The following is a list of appearances by UNIT. For lists of appearances by specific UNIT personnel, such as Brigadier Lethbridge-Stewart, with or without UNIT, see the bottom of the page. This list does not include future successors to UNIT.

Season 6

 * The Invasion (introduction)

Season 7

 * Spearhead from Space
 * Doctor Who and the Silurians
 * The Ambassadors of Death
 * Inferno

Season 8

 * Terror of the Autons
 * The Mind of Evil
 * The Claws of Axos
 * Colony in Space (cameo)
 * The Dæmons

Season 9

 * Day of the Daleks
 * The Time Monster

Season 10

 * The Three Doctors
 * The Green Death

Season 11

 * The Time Warrior (cameo)
 * Invasion of the Dinosaurs
 * Planet of the Spiders

Season 12

 * Robot

Season 13

 * Terror of the Zygons
 * The Android Invasion
 * The Seeds of Doom

Season 20

 * The Five Doctors (cameo)

Season 26

 * Battlefield

Series 1

 * Aliens of London/World War Three (cameo)

Series 2

 * The Christmas Invasion

Series 3

 * The Sound of Drums/Last of the Time Lords (cameo, UNIT Aircraft)

Series 4

 * The Sontaran Stratagem/The Poison Sky
 * Turn Left (alternate timeline)
 * The Stolen Earth/Journey's End

2009 Specials (Doctor Who)

 * Planet of the Dead
 * The End of Time (cameo)

Series 2

 * Reset (UNIT officer Martha Jones on loan)
 * Dead Man Walking (Martha Jones on loan)
 * A Day in the Death (Martha Jones on loan)
 * Fragments (flashback)

Series 3

 * Children of Earth: Day One
 * Children of Earth: Day Three
 * Children of Earth: Day Four
 * Children of Earth: Day Five

Series 2

 * The Mark of the Berserker (UNIT online archives)
 * Enemy of the Bane

Series 4

 * Death of the Doctor

Target Novelisations

 * Doctor Who and the Auton Invasion
 * Doctor Who and the Cave Monsters'
 * Doctor Who and the Doomsday Weapon (cameo)
 * Doctor Who and the Day of the Daleks
 * Doctor Who and the Dæmons
 * Doctor Who and the Giant Robot
 * List TBC

Virgin New Adventures

 * The Pit
 * Blood Heat (alternative version)
 * The Left-Handed Hummingbird
 * No Future
 * Head Games
 * Happy Endings
 * The Dying Days

Virgin Missing Adventures

 * The Ghosts of N-Space
 * Downtime
 * Dancing the Code
 * The Eye of the Giant
 * The Scales of Injustice
 * Who Killed Kennedy

BBC Eighth Doctor Adventures

 * Vampire Science
 * Genocide
 * Alien Bodies
 * Dominion
 * Interference - Book One
 * Interference - Book Two
 * The Shadows of Avalon

BBC Past Doctor Adventures

 * The Devil Goblins from Neptune
 * The Face of the Enemy
 * Last of the Gaderene
 * Rags
 * Verdigris
 * Deep Blue

Big Finish Doctor Who audio stories

 * The Fires of Vulcan

UNIT

 * The Coup
 * Time Heals
 * Snake Head
 * The Longest Night
 * The Wasting

Doctor Who

 * The Paradise of Death
 * The Ghosts of N-Space

Torchwood

 * Lost Souls
 * Submission

Doctor Who Magazine

 * Doctor Who and the Star Beast (cameo)
 * The Fires Down Below
 * Skywatch-7
 * Distractions / The Mark of Mandragora
 * Final Genesis (alernative timeline equivalent)
 * The Man in the Ion Mask
 * Target Practice
 * The Age of Ice
 * The Golden Ones

Doctor Who Adventures

 * The Genius Trap

Doctor Who: Battles in Time

 * Attack of the Rats

Doctor Who Classic Comics

 * Evening's Empire

IDW Publishing

 * The Forgotten

Doctor Who

 * Tesseract (cameo)
 * Don't Step on the Grass

Reeltime Pictures

 * Wartime
 * Downtime

BBV Productions

 * Auton
 * Auton 2: Sentinel
 * Auton 3: Awakening

Theatrical play

 * Recall UNIT: The Great Tea-Bag Mystery (possibly non-canonical)