(written from a Production point of view)
Sebastian Tom (20 May 1938 – 1 October 2009; age 71) was the actor who portrayed the Samurai warrior in the Star Trek: The Original Series first season episode "Shore Leave". He filmed his scenes for the episode on Wednesday, 26 October 1966 at Vasquez Rocks. 
Tom graduated from Los Angeles High School in 1956, from the University of Southern California in 1963, and from Southwestern Law School in 1973. He worked in the family restaurant, the original New Moon in Downtown Los Angeles and served as Chief Council to Congressman Gus Hawkins.
Tom passed away peacefully on 1 October 2009 at the age of 71.