DeForest Kelley (1920 - 1999) was an American actor who played Leonard McCoy in Star Trek: The Original Series, all of that series' films and the Star Trek: The Next Generation episode Encounter at Farpoint. Kelley also voiced McCoy in the animated Star Trek series and the video games 25th Anniversary and Judgment Rites. He appeared in the archival footage from "The Trouble With Tribbles" that was used in the Star Trek: Deep Space Nine episode "Trials and Tribble-ations".