The following is a comprehensive but not definitive list of appearances by Vislor Turlough (almost always called simply "Turlough").
Television
Doctor Who
Season 20
- Mawdryn Undead (first appearance; joins)
- Terminus
- Enlightenment
- The King's Demons
Season 21
- The Five Doctors
- Warriors of the Deep
- The Awakening
- Frontios
- Resurrection of the Daleks
- Planet of Fire (leaves)
- The Caves of Androzani (cameo; hallucination)
Prose
Novels
Virgin Missing Adventures
BBC Past Doctor Adventures
The Companions of Doctor Who
- Turlough and the Earthlink Dilemma (after leaving)
Gamebooks
Find Your Fate
Short Stories
Radio Times 20th Anniversary Special
Doctor Who Magazine
Doctor Who Annual
Doctor Who Yearbook
Decalog
Short Trips
- Qualia
- Rome
- Comforts of Home
- One Wednesday Afternoon
- The Assassin's Story
- Observation
- Lant Land
- White Man's Burden
- Last Minute Shopping
- The Misadventures of Mark Thorne
- Piecemeal
- Do You Believe in the Crampus?