User:SOTO/Forum Archive/The Panopticon/@comment-9435571-20140927221308/@comment-2033057-20141211150225

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I should certainly think we can.

I've always thought of her as a companion the moment she remained on the TARDIS after it took off in Kill The Moon. However, as others have mentioned, the Maitland children are counted after a single trip - so that must mean that Courtney MUST be counted. In addition, she has to have had at least one additional trip between "Caretaker" and "Kill The Moon" as implied by Clara's line about her stealing the Doctor's Psychic Paper. On that basis alone, she has seniority over the Maitlands for Companion Status and should be included