 Other roles include Robert Hooks as Admiral Morrow , the commander of Starfleet ; James Sikking as Captain Styles , the Commanding Officer of the Excelsior ; Miguel Ferrer as the Excelsior 's First Officer and Helmsman ; and Phillip R. Allen as Captain J.T. Esteban , the captain of the ill @-@ fated Grissom . John Larroquette plays Maltz , a member of Kruge 's bridge crew whom Nimoy describes as " the thoughtful Klingon " . Catherine Shirriff plays Valkris , Kruge 's doomed lover . Grace Lee Whitney , who played Janice Rand in the Star Trek television show , made a cameo appearance ( wearing a wig ) as " Woman in Cafeteria " . Scott McGinnis plays a young man whom Uhura forces into a closet at gunpoint . 
