Doctor Who

Motifs

• Ascended Energy Beings

  The President of the Time Lords, Rassilon, a resurrected mythological figure, attempts to turn the Time Lords into beings of energy so they can govern the universe and destroy any enemies.

• Causal Loop

  The series usually, but not always, resolves time travel paradoxes with causal loops.

• Prolific Humanoid Aliens

  Most aliens are humans due to budget constraints and British TV production practices.