User:SOTO/Forum Archive/The Panopticon/@comment-9435571-20140927221308/@comment-188432-20140928072336

From Tardis Wiki, the free Doctor Who reference

While there are no in-universe definitions of a companion, it would be chaotic in the extreme if we as a wiki started calling any person who travelled in the TARDIS a companion. There are hundreds of characters who have done this. Let's hold off on making any determination about Courtney until the end of the series, at least.

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