(written from a Production point of view)
Katie Jane Johnston (born 13 February 1979; age 41) was one of four performers to play the role of Martia in the movie Star Trek VI: The Undiscovered Country. Johnston played Martia in the form of a child, with Iman's voice dubbed over her own in post-production. She was 12 years old at the time.
Johnson appeared in a recurring role on the ABC drama Once and Again alongside Billy Campbell, Jeffrey Nordling, and Susanna Thompson. Other roles included The Prince and the Surfer (1999; with Vincent Schiavelli) and Killing Mr. Griffin (1997; with Jennifer Hammon and Scott Jaeck).