It’s not as if Olly’s insights have been particularly deep, revolving entirely around his personal experience. However, this season the character has been far and away overrepresented, containing more screen time and lines than the much more formidable Ser Alliser Thorne. The character was invented by the show last season, at the suggestion of then-assistant Dave Hill, to give the peasant victims of the wildlings an identifiable face and voice. The Caesar-like assassination of Jon Snow on the show throws in a few extra characters, but the executive producers did their best to point out young Olly again and again (and again) as being central to the event.
