WordNet (r) 3.0 (2006):

choreographer
    n 1: someone who creates new dances

Moby Thesaurus II by Grady Ward, 1.0:

24 Moby Thesaurus words for "choreographer":
   comedian, dramatist, dramatizer, dramaturge, farcer, farceur,
   farceuse, farcist, gagman, joke writer, jokesmith, librettist,
   melodramatist, mimographer, monodramatist, play doctor, play fixer,
   playwright, playwriter, scenario writer, scenarioist, scenarist,
   scriptwriter, tragedian