Talk:Terror of the Zygons (TV story)
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"The departure of Harry while Sarah remains with the Doctor marks one of only two incontrovertible times a companion who had already been with the Doctor before another one joins remains with him after the second companion leaves."
Would Adam Mitchell be a third example, or is he in the "debatable" category? Sean Fennel ☎ 18:13, October 18, 2012 (UTC)