Sacrifice and Substitution in the Face of Domination

The Cybermen's colonization strategy hinges on replacing organic life with artificial perfection, reducing human value to utility. Characters transformed into sleeper agents or hollowly compliant figures illustrate the dehumanizing cost of substitution. The Doctor's defiance acts as a rebuttal, showing that substitution enforces control and erodes identity, demanding sacrifice of humanity.

4 events across 1 season