Doctor Who: The Newbies Guide
Frontier in Space
This is the third story in Season 10.
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. In The Three Doctors the Time Lords revoked his exile.
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 first appeared in Terror of the Autons..
Recurring and Historical Characters
The Ogrons are apelike creatures who the Daleks used as slave labour in Day of the Daleks .
The Master is a Time Lord and an enemy and rival of the Doctor. In Terror of the Autons he arrived on Earth and allied with the Nestene Consciousness to attempt to conquer Earth. He was stopped by the Doctor and UNIT. He has since come into conflict with the Doctor repeatedly.