Doctor Who: The Newbies Guide
The Brain of Morbius
This is the fifth story in Season 13.
The Fourth Doctor dresses in a rather bohemian outfit, notable for its long scarf. He is somewhat alien, willing to play the fool, and almost never gets on with authority figures.
Sarah Jane Smith is a journalist who, in The Time Warrior, sneaked into UNIT in search of a story and ended up accompanying the third Doctor on a trip to the middle ages. Sarah has subsequently become the Doctor's travelling companion.
Recurring and Historical Characters
The new character Morbius is identified as being a Time Lord, one of the Doctor's people, the Time Lords.