An unlikely duo of an angel and a demon come together in a tale of friendship to stop the clock ticking towards Armageddon in the Amazon Prime show Good Omens.
Companions young and old, male and female, from the past, future and present have traveled with the Doctor. Here's the ones that deserve a spin-off of their own!
The phrase "Bad Wolf" was scattered throughout the Doctor and Rose's timeline on Doctor Who. It led to disaster, destiny, love, and sometimes, the end of the universe.