The First Doctor was portrayed by the actor William Hartnell from 1963 to 1966.

Season One (1963-1964)

• The Pilot Episode
• An Unearthly Child
• The Daleks
• The Edge of Destruction
• Marco Polo
• The Keys of Marinus
• The Aztecs
• The Sensorites
• The Reign of Terror

Season Two (1964-1965)

• Planet of Giants
• The Dalek Invasion of Earth
• The Rescue
• The Romans
• The Web Planet
• The Crusade
• The Space Museum
• The Chase
• The Time Meddler

Season Three (1965-1966)

• Galaxy 4
• Mission to the Unknown
• The Myth Makers
• The Daleks’ Master Plan
• The Massacre
• The Ark
• The Celestial Toymaker
• The Gunfighters
• The Savages
• The War Machines

Season Four (1966)

• The Smugglers
• The Tenth Planet

Source of inspiration and material: Wikipedia & BBC