- How The Sontaran Stratagem and The Poison Sky upgraded the classic monster race that had even once invaded the Doctor's home planet.
- Also, how the new Sontaran costumes were made, and a look at all the Sontarans from the original series.
Moment in Time — Small Fortune
- The lengths that the Doctor Who production team went to ensuring their Sontarans were even better, scarier and funnier than ever.
- It's the end of an era as Doctor Who says goodbye to William Hartnell.
Doctor Who universe — Terrible transformations
- Not every mutant is out to kill the Doctor — but it's a good rule of thumb!
The Big Ask — Your Questions Answered
- Why don't Sontarans look alike? Just when did the Doctor work at UNIT?
The People Who... — Billie Piper
- How the actress helped to change the role of the Doctor's companion.
to be added