Clone batch

Clone batches were groups of cloned Sontarans. (COMIC: Conflict of Interests) 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)

According to different accounts, Strax' clone batch consisted of over 10,000, (AUDIO: The Cars That Ate London!) 600,000,000, (AUDIO: Dining with Death) or 6,000,000,000 Sontarans. (TV: The Snowmen) In one lunar month, at least 400,000 such batches would reach gestation. (AUDIO: Dining with Death)

Behind the scenes

 * 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.