Source : Webster's Revised Unabridged Dictionary (1913)

Pantomimist \Pan"to*mi`mist\, n.
   An actor in pantomime; also, a composer of pantomimes.

Source : WordNet®

pantomimist
     n : an actor who communicates entirely by gesture and facial
         expression [syn: {mime}, {mimer}, {mummer}, {pantomimer}]