Forum:Companions - who counts?

Template:Companions of the Eleventh Doctor list Kazran, Abigail, and Canton as single-adventure companions. Can they really count? They only appeared in one story and were never referred to as companion by the BBC (unlike Astrid, Adelaide etc.).

By that logic, characters such as Richard Mace, Lieutenant Carstairs, Charles Dickens and at least one character from every story would count as a companion. TemporalSpleen 09:59, May 1, 2011 (UTC)