When a destructive space entity is spotted approaching Earth, Admiral Kirk resumes command of the Starship Enterprise in order to intercept, examine, and hopefully stop it.
132 min.
Robert Wise
| William Shatner | Admiral James T. Kirk |
| Leonard Nimoy | Mr. Spock |
| DeForest Kelley | Dr. Leonard McCoy |
| Stephen Collins | Captain William Decker |
| Persis Khambatta | Lieutenant Ilia / The Probe |
| James Doohan | Montgomery Scott |
| George Takei | Lt. Cmdr. Hikaru Sulu |
| Walter Koenig | Lt. Pavel Chekov |
| Nichelle Nichols | Lt. Cmdr. Uhura |
| Majel Barrett | Dr. Christine Chapel |
| Grace Lee Whitney | CPO Janice Rand |
| Mark Lenard | Klingon Captain |
| Billy Van Zandt | Alien Boy |
| Roger Aaron Brown | Epsilon Technician |
| Gary Faga | Airlock Technician |
| Franklyn Seales | Crew Member |
| Joel Kramer | Klingon Crewman |
| David Gautreaux | Cmdr. Branch |
| John Gowans | Assistant to Rand |
| Howard Itzkowitz | Cargo Deck Ensign |
| Jon Rashad Kamal | Lt. Cmdr. Sonak |
| Marcy Lafferty | Chief DiFalco |
| Michele Povill | Lieutenant |
| Jeri McBride | Technician |
| Terrence O'Connor | Chief Ross |
| Michael Rougas | Lt. Cleary |
| Susan O'Sullivan | Woman |
| Ralph Brannen | Crew Member |
| Ralph Byers | Crew Member |
| Paula Crist | Crew Member |
| Iva Lane | Crew Member |
| Momo Yashima | Crew Member |
| Jimmie Booth | Klingon Crewman |
| Dave Moordigian | Klingon Crewman |
| Tom Morga | Klingon Crewman |
| Tony Rocco | Klingon Crewman |
| Joel Schultz | Klingon Crewman |
| Craig Thomas | Klingon Crewman |
| Edna Glover | Vulcan Master |
| Norman Stuart | Vulcan Master |
| Paul Weber | Vulcan Master |
| Joshua Gallegos | Security Officer |
| Lisa Chess | Yeoman |
| Leslie C. Howard | Yeoman |
| Sayra Hummel | Technical Assistant |
| Junero Jennings | Technical Assistant |
| Christopher Doohan | Extra (uncredited) |