Doctor Who: The Newbies Guide
The Two Doctors
This is the fourth story in Season 22. Like all stories in this season its episodes are 45 minutes long.
Where does this fit?
For the sixth Doctor this happens in broadcast order.
For the second Doctor, it probably takes place between the final scene of The War Games and the Doctor's regeneration (the novels make this explicit). Some fans prefer to think that it happens somewhere between The Tomb of the Cybermen and The Wheel in Space with the Doctor and Jamie then having their memories wiped.
The sixth Doctor is brash, stubborn, and often condescending and arrogant. He wears a bright multi-coloured coat.
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.
Perpugilliam "Peri" Brown is an American botany student from the 1980s who decided to join the Doctor on his travels during Planet of Fire. In The Caves of Androzani, the fifth Doctor sacrificed himself to save her life. She stayed with the newly regenerated Doctor in The Twin Dilemma despite post-regeneration trauma that led him to attempt to strangle her.
Jamie McCrimmon is a scots piper who met the second Doctor after the battle of Culluden in The Highlanders. During that story he fought on the side of Bonnie Prince Charlie against the Redcoat forces of England. He is proud of his Scottishness and wears a kilt and carries a dirk (knife).
Recurring and Historical Characters
The Sontarans are a warrior race who are involved in a very long-lasting war with the Rutan. In The Time Warrior the Doctor defeated a lone Sontaran called Linx who was using crude time travel technology to bring human scientists from the 20th Century to repair his spaceship, which had crashed in medieval England. In The Sontaran Experiment, the Doctor defeated a lone Sontaran called Styre who was experimenting on an isolated group of humans several thousand years in the future. In The Invasion of Time the Doctor prevented the Sontarans from conquering his home planet of Gallifrey.