Board Thread:The Panopticon/@comment-9435571-20140927221308/@comment-1827503-20141020144336

Courtney has appeared four times in a single series, placing her in a similar situation to Angie and Artie - both Courtney and the Maitlands appeared multiple times in a single series, have a student-teacher relationship of some sort to Clara, and acted as "guest companions" for a single episode, which immediately followed the episode where they learned about the Doctor.

As for Danny Pink, his exact status can't be determined until the end of the series, but it appears he is "narratively ambiguous" at this time, in the same manner as Mickey is to the Ninth Doctor.