Trevor Jones (b. 1949) provided orchestral score to The Dark Crystal and Labyrinth, and the theme music for Jim Henson Presents the World of Puppetry.
He has also scored several Creature Shop projects, including Gulliver's Travels, Merlin, Dinotopia, and Around the World in 80 Days.
His non-Henson credits include Thirteen Days, Dark City, The Last of the Mohicans, Cliffhanger and I, Robot.