Second Doctor/Appearances

The following is an incomplete list of the Second Doctor's appearances.

Season 4

 * The Tenth Planet (first appearance; cameo)
 * The Power of the Daleks
 * The Highlanders
 * The Underwater Menace
 * The Moonbase
 * The Macra Terror
 * The Faceless Ones
 * The Evil of the Daleks

Season 5

 * The Tomb of the Cybermen
 * The Abominable Snowmen
 * The Ice Warriors
 * The Enemy of the World
 * The Web of Fear
 * Fury from the Deep
 * The Wheel in Space

Season 6

 * The Dominators
 * The Mind Robber
 * The Invasion
 * The Krotons
 * The Seeds of Death
 * The Space Pirates
 * The War Games (apparent regeneration; last regular appearance)

Season 9

 * Day of the Daleks (flashback; archival photo)

Season 10

 * The Three Doctors

Season 13

 * The Brain of Morbius (flashback)

Season 19

 * Earthshock (flashback)

Season 20

 * Mawdryn Undead (flashback)
 * The Five Doctors

Season 22

 * The Two Doctors

Doctor Who Mini-episode

 * Dimensions in Time (cameo; non-canonical)

Series 3

 * Human Nature (drawing)

2008-10 Specials

 * The Next Doctor (archive material)

Series 5

 * The Eleventh Hour (hologram)
 * Vincent and the Doctor (photo)
 * The Lodger (archival footage)

Series 4

 * Death of the Doctor (flashback)

The Lost Stories

 * Prison in Space

The Companion Chronicles

 * Fear of the Daleks
 * Helicon Prime
 * The Great Space Elevator
 * Resistance
 * The Glorious Revolution
 * The Emperor of Eternity
 * The Three Companions
 * Echoes of Grey
 * The Forbidden Time

AudioGO

 * The Hexford Invasion (guest; clone)
 * Survivors in Space (guest; clone)

Video Games

 * Destiny of the Doctors

Target novelisations

 * Doctor Who and the Abominable Snowmen
 * Doctor Who and the Cybermen
 * Doctor Who – The Three Doctors
 * Doctor Who and the Tenth Planet (cameo)
 * Doctor Who and the Ice Warriors
 * Doctor Who and the Web of Fear
 * Doctor Who and the Tomb of the Cybermen
 * Doctor Who and the War Games
 * Doctor Who and the Enemy of the World
 * Doctor Who – The Five Doctors
 * Doctor Who – The Dominators
 * Doctor Who – The Highlanders
 * Doctor Who – The Invasion
 * Doctor Who – The Krotons
 * Doctor Who – The Two Doctors
 * Doctor Who – Fury from the Deep
 * Doctor Who – The Seeds of Death
 * Doctor Who – The Macra Terror
 * Doctor Who – The Underwater Menace
 * Doctor Who – The Wheel in Space
 * Doctor Who – The Space Pirates
 * Doctor Who – The Power of the Daleks
 * Doctor Who – The Evil of the Daleks

Virgin New Adventures

 * Timewyrm: Apocalypse (flashback cameo)

Virgin Missing Adventures

 * The Menagerie
 * Invasion of the Cat-People
 * Downtime (flashback cameo) - actually a novelisation of an independent film, but the Second Doctor does not appear in the film itself.
 * Who Killed Kennedy (possible cameo)
 * Twilight of the Gods
 * The Dark Path

BBC Eighth Doctor Adventures

 * The Eight Doctors

BBC Past Doctor Adventures

 * The Murder Game
 * The Roundheads
 * Dreams of Empire
 * Players (flashback cameo)
 * The Final Sanction
 * Independence Day (flashback cameo)
 * Heart of TARDIS
 * Dying in the Sun
 * Combat Rock
 * The Colony of Lies
 * The Indestructible Man
 * World Game

Telos Doctor Who novellas

 * Foreign Devils
 * Wonderland

Doctor Who annuals
Doctor Who Annual 1968
 * The Sour Note
 * The Dream Masters
 * The Word of Asiries
 * Only a Matter of Time
 * Planet of Bones
 * When Starlight Grows Cold
 * H.M.S. TARDIS
 * The King of Golden Death

Doctor Who Annual 1969
 * Lords of the Galaxy
 * Follow the Phantoms
 * Mastermind of Space
 * The Celestial Toyshop
 * Valley of Dragons
 * Planet from Nowhere
 * Happy as Queeg
 * World of Ice
 * The Microtron Men
 * Death to Mufl

Doctor Who Annual 1970
 * The Dragons of Kekokro
 * The Singing Crystals
 * The Mystery of the Marie Celeste
 * Grip of Ice
 * Man Friday
 * Slave of Shran
 * Run the Gauntlet
 * A Thousand & One Doors

Doctor Who Annual 1978 Doctor Who Yearbook
 * The Sleeping Beast (flashback cameo)
 * Loop the Loup (DWY 1994)
 * Briefly Noted (DWY 1995)

Brief Encounter

 * Future Imperfect (DWY 1992)
 * Dream a Little Dream For Me (DWY 1993)

Virgin Decalogs

 * Fallen Angel (Decalog)
 * Vortex of Fear (Decalog 2)
 * Aliens and Predators (Decalog 3)

Short Trips

 * War Crimes (Short Trips)
 * Mother's Little Helper (Short Trips)
 * Scientific Adviser (More Short Trips)
 * uPVC (More Short Trips)
 * Please Shut the Gate (Short Trips and Side Steps)
 * Reunion (Short Trips and Side Steps)
 * Twin Piques (Zodiac)
 * Constant Companion (Zodiac)
 * Five Card Draw (Zodiac)
 * Face-Painter (A Universe of Terrors)
 * The Astronomer's Apprentice (The Muses)
 * The Glass Princess (The Muses)
 * Dust (Steel Skies)
 * Greenaway (Steel Skies)
 * One Small Step... (Past Tense)
 * That Time I Nearly Destroyed the World Whilst Looking for a Dress (Past Tense; guest appearance)
 * The Age of Ambition (Life Science)
 * The Farmer's Story (Repercussions)
 * The Steward's Story (Repercussions)
 * Screamager (Monsters)
 * The Last Emperor (2040)
 * The Man Who (Nearly) Killed Christmas (A Christmas Treasury)
 * Goodwill Toward Men (A Christmas Treasury)
 * That Which Went Away (Seven Deadly Sins)
 * Undercurrents (A Day in the Life)
 * Visiting Hours (A Day in the Life)
 * Mercury (The Solar System)
 * Pluto (The Solar System)
 * The Feast (The History of Christmas)
 * The Revolutionaries (The History of Christmas)
 * Saint Nicholas's Bones (The History of Christmas)
 * Father Figure (Farewells)
 * The Lost (The Centenarian)
 * The Avant Guardian (Time Signature)
 * The Time Eater (Destination Prague)
 * Across Silent Seas (Destination Prague)
 * Golem (Snapshots)
 * All of Beyond (Snapshots)
 * The Cutty Wren (The Ghosts of Christmas)
 * The Christmas Presence (The Ghosts of Christmas)
 * Lepidoptery for Beginners (Defining Patterns)
 * One Step Forward, Two Steps Back (Defining Patterns)
 * Homework (Defining Patterns)
 * The Slave War (The Quality of Leadership)
 * On a Pedestal (The Quality of Leadership)
 * Blue Road Dance (Transmissions)
 * Outstanding Balance (How The Doctor Changed My Life)
 * Lares Domestici (How The Doctor Changed My Life)
 * Mirth, or Walking Spirits (Christmas Around the World)
 * Favourite Star (Indefinable Magic)
 * Pass It On (Indefinable Magic)

TV Comic

 * The Extortioner
 * The Trodos Ambush
 * The Doctor Strikes Back
 * The Zombies
 * Master of Spiders
 * The Exterminator
 * Barnabus
 * Jungle Adventure
 * The Monsters from the Past
 * The TARDIS Worshippers
 * Space War Two
 * Egyptian Escapade
 * The Coming of the Cybermen
 * The Faithful Rocket Pack
 * Flower Power
 * The Witches
 * Cyber-Mole
 * The Sabre-Toothed Gorillas
 * The Cyber Empire
 * The Dyrons
 * Dr. Who and the Space Pirates
 * Car of the Century
 * The Jokers
 * Invasion of the Quarks
 * The Killer Wasps
 * Ice Cap Terror
 * Jungle of Doom
 * Father Time
 * Martha the Mechanical Housemaid
 * The Duellists
 * Eskimo Joe
 * Peril at 60 Fathoms
 * Operation Wurlitzer
 * Action in Exile
 * The Mark of Terror
 * The Brotherhood
 * U.F.O.
 * The Night Walkers

Special TV Comic Issues

 * Return of the Witches
 * Masquerade
 * The Champion
 * The Entertainer
 * Attack of the Daleks
 * Pursued by the Trods
 * The Time Museum
 * The Electrodes
 * Death Race
 * Test Flight

Doctor Who annual
Doctor Who Annual 1968
 * The Tests of Trefus
 * World Without Night

Doctor Who Annual 1969
 * Atoms Infinite
 * Freedom by Fire

Doctor Who Annual 1970
 * The Vampire Plants
 * Robot King

Doctor Who Magazine

 * Timeslip (briefly regresses from Fourth Doctor to this incarnation)
 * Planet of the Dead (impersonated)
 * The Chameleon Factor (flashback cameo)
 * Time & Time Again
 * Land of the Blind
 * Bringer of Darkness

IDW Publishing

 * The Forgotten
 * Doctor Who Annual 2010: To Sleep, Perchance to Scream (cameo)

Direct-to-Video

 * Do You Have a Licence to Save this Planet? (cameo)
 * non-canonical.

Other

 * Devious - non-canonical fan film in which footage of Patrick Troughton from The War Games and The Two Doctors was incorporated into the story; released to DVD by BBC Video as a bonus feature with DW: The War Games in 2009.