Doctor Who: The Newbies Guide
The Three Doctors
This is the first story in Season 10.
Where does this fit?
One of the novels tells us that for the first Doctor this happens between [tv]The Time Meddler[/tv[ and Galaxy 4.
From the point of view of the second Doctor this happens at some point after The Invasion. It is most commonly assumed that it happens between the final scene of The War Games and his regeneration.
The Third Doctor has white hair, a large nose, and tends to dress as a society dandy. He has a love of technology, historical name-dropping, and vehicles. In The War Games the Doctor's people (the Time Lords) sentenced him to exile on Earth. In Spearhead from Space, he was appointed as scientific advisor to UNIT. Although the Time Lords have sent him on a couple of missions to other planets and time zones, he remains stranded on Earth.,
The second Doctor is short with a beatles moptop. He tends to act the part of a fool and give events a push in the right direction rather than directly taking control. He also plays the recorder.
The first Doctor looks like a human in his sixties. He is physically quite frail, but has a keen intellect. He is paternalistic towards his companions, and has a degree of arrogance towards others. He sometimes mispronounces words.
Brigadier Lethbridge-Stewart is the commanding officer of the United Nations Intelligence Taskforce (UNIT). He worked with the Second Doctor to defeat threats to Earth on two occasions (in The Web of Fear and The Invasion. In Spearhead from Space, he teamed up wiih the Third Doctor to prevent an invasion by the Nestene and the Autons. During that story he persuaded the Doctor to work as his scientific adviser.
Josephine "Jo" Grant is the Doctor's assistant at UNIT. She failed General Science A Level, but has had training in escapology, cryptology, and explosives.She has accompanied the Doctor on his previous missions for the Time Lords/
Sergeant Benton is a UNIT officer. He worked with the Second Doctor to prevent a Cyberman invasion in The Invasion. He has been working with the Third Doctor for several years.
Recurring and Historical Characters
The United Nations Intelligence Taskforce (UNIT) is an organisation devoted to protecting Earth from extra-terrestrial threats, In The Invasion, the second Doctor teamed up with them to prevent an invasion by the Cybermen. In Spearhead from Space, the third Doctor became their scientific advisor.
The Time Lords are the Doctor's own people. In The War Games they sentenced him to exile on Earth for his interference in the universe.
None. There is no particular benefit to having seen the stories establishing the Doctor's exile.