Clone batches were groups of cloned Sontarans. After being disgraced, Commander Strax served as a nurse to humans to restore the honour of his clone batch. (TV: A Good Man Goes to War)

Behind the scenes Edit

  • Strax's clone batch appeared accompanying him in one of two specially recorded fourth wall-breaking scenes shown before The Day of the Doctor in its showings in cinemas, in which he lectured viewers on cinema etiquette.
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