Most of us are aware of understudies, actors who fill in for another actor who is sick or injured or otherwise can’t perform.  But with up to 10 jobs backstage for every person who is on stage – a similar system is necessary for crew people – lighting, sound, prop crew, costumes – and front of house (box office, house management, etc).  This is an ARTICLE about a guy whose  career is as a fill-in for company managers and house managers who need a replacement.