 Kirk's "We come in peace; shoot to kill" also never featured, and was suggested by author Brian Robb as having "summed up the popular impression of the trigger-happy captain's approach to alien encounters".The voices of the characters were not provided by the actors who portrayed them in "The Original Series"; O'Connor voiced the Kirk and McCoy, while Douglas voiced Spock.Scotty was voiced by a studio engineer and O'Connor's wife, Shelly, voiced Uhura.