FOURTH DOCTOR - TOM BAKER

The Fourth Doctor - Portrayed by Tom Baker

The Fourth Doctor during his initial publicity photoshoot

First Appearance: 

• PLANET OF THE SPIDERS (cameo) - 8 June 1974
• ROBOT – 18 December 1974

Final Appearance:

• LOGOPOLIS – 21 March 1981

Notable Returns:

• THE FIVE DOCTORS – 23 November 1983

Companions:

• Sarah Jane Smith
• Harry Sullivan
• Leela
• K9
• Romana
• Adric
• Nyssa
• Tegan

First Encounters:

• Davros: GENESIS OF THE DALEKS
• The Zygons: TERROR OF THE ZYGONS
• The White Guardian: THE RIBOS OPERATION
• The Black Guardian: THE ARMAGEDDON FACTOR

Doppelgängers:

• Android Duplicate: THE ANDROID INVASION
• Clone: THE INVISIBLE ENEMY
• Meglos: MEGLOS

Dalek Encounters:

• GENESIS OF THE DALEKS
• DESTINY OF THE DALEKS

Cybermen Encounters:

• REVENGE OF THE CYBERMEN

Brigadier Encounters:

• ROBOT
• TERROR OF THE ZYGONS

The Master Encounters:

• THE DEADLY ASSASSIN
• THE KEEPER OF TRAKEN
• LOGOPOLIS

UNIT Encounters:

• ROBOT
• TERROR OF THE ZYGONS
• THE ANDROID INVASION
• THE SEEDS OF DOOM

Sontaran Encounters:

• THE SONTARAN EXPERIMENT
• THE INVASION OF TIME

Davros Encounters:

• GENESIS OF THE DALEKS
• DESTINY OF THE DALEKS

Given Age: 

• 750: PYRAMIDS OF MARS
• 757: THE BRAIN OF MORBIUS
• 749: THE SEEDS OF DOOM
• 759: THE RIBOS OPERATION
• 760: THE POWER OF KROLL

Cause of Regeneration: 

• Fall from a radio telescope, crushes his body, and merged with an echo of his next incarnation called the Watcher: LOGOPOLIS

The Fourth Doctor in his final story, 'Logopolis', with the Master