Season 19:

• Castrovalva
• Four to Doomsday

Season 21:

• The Caves of Androzani

Cameo Appearances –

• The Day of the Doctor (50th Anniversary Special)

Big Finish Audio Dramas

The Lost Stories:

• The Elite
• Hexagora
• The Children of Seth
• Nightmare Country

Travels with Adric, Nyssa and Tegan:

• The Star Men
• The Contingency Club
• Zaltys
• Kingdom of Lies
• Ghost Walk
• Serpent in the Silver Mask

Travels with Nyssa:

• The Haunting of Thomas Brewster
• Alien Heart / Dalek Soul

Travels with Nyssa, Tegan and Marc:

• Tartarus
• Interstitial / Feast of Fear
• Warzone / Conversion
• Time Apart
• Thin Time / Madquake

Travels with Tegan, Turlough and/or Kamelion:

• Devil in the Mist
• Black Thursday / Power Game
• The Kamelion Empire
• Time in Office

Travels with Turlough:

• The Blazing Hour

Travels with Peri and Erimem:

• The Eye of the Scorpion

Solo Adventures:

• Classic Doctors, New Monsters Vol.2: Empire of the Racnoss
• The Helliax Rift
• The Legacy of Time: Relative Time
• Shadow of the Daleks 1
• Shadow of the Daleks 2
• Wicked Sisters

Guest Appearances –

• The Legacy of Time: Collision Course
• The End of the Beginning
• The Gates of Hell (Tenth Doctor Audio)

Cameo Appearances – 

• Expiry Dating (Tenth Doctor Audio)

Doctor Who Magazine:

• The Lunar Strangers
• The Curse of the Scarab

Cameo Appearances –

• Time and Time Again (Seventh Doctor Strip)

Titan Comics:

Guest Appearances –

• Year 3 Crossover Event: The Lost Dimension

Cameo Appearances –

• Year 2 Crossover Event: Supremacy of the Cybermen

Guest Appearances –

• The Eight Doctors