The Dancing Troll is Robin-Mary Paris.
The dancer in many youtube videos has been misidentified as Kam Nelson and others. Here are the FACTS! The clip of a girl dancing was taken from a government video about military etiquette and grooming for WACS.
Voice, eyes, teeth and chin all match. She is listed as a cast member in the WAC videos. See 5:47 and 6:22. The Dancing Troll is Robin-Mary Paris. 100%