"When a huge alien probe enters the galaxy and begins to vaporize Earth's oceans, Kirk and his crew must travel back in time in order to bring back whales and save the planet."
William Shatner
as Kirk
Leonard Nimoy
as Spock
DeForest Kelley
as McCoy
James Doohan
as Scotty
George Takei
as Sulu
Walter Koenig
as Chekov
Nichelle Nichols
as Uhura
Mark Lenard
as Sarek
Jane Wyatt
as Amanda
Majel Barrett
as Commander Chapel
Robert Ellenstein
as Federation Council President
John Schuck
as Klingon Ambassador
Brock Peters
as Admiral Cartwright
Robin Curtis
as Lt. Saavik
Catherine Hicks
as Gillian
Michael Snyder
as Starfleet Communications Officer
Michael Berryman
as Starfleet Display Officer
Mike Brislane
as Saratoga Science Officer
Grace Lee Whitney
as Commander Rand
Jane Wiedlin
as Alien Communications Officer
Vijay Amritraj
as Starship Captain
Nick Ramus
as Saratoga Helmsman
Thaddeus Golas
as Controller #1
Marty Pistone
as Controller #2
Scott Devenney
as Bob Briggs
Viola Kates Stimpson
as Lady in Tour
Phil Rubenstein
as 1st Garbageman
John Miranda
as 2nd Garbageman
Joe Knowland
as Antique Store Owner
Bob Sarlatte
as Waiter
Everett Lee
as Cafe Owner
Richard Harder
as Joe
Alex Henteloff
as Nichols
Tony Edwards
as Pilot
Eve Smith
as Elderly Patient
Tom Mustin
as Intern #1
Greg Karas
as Intern #2
Raymond Singer
as Young Doctor
David Ellenstein
as Doctor #1
Judy Levitt
as Doctor #2
Teresa E. Victor
as Usher
James Menges
as Jogger
Kirk R. Thatcher
as Punk on Bus
Jeff Lester
as FBI Agent
Joe Lando
as Shore Patrolman
Newell Tarrant
as CDO
Mike Timoney
as Electronic Technician
Jeff Martin
Joseph Naradzay
as Marine Sargent
Donald W. Zautcke
as Marine Lieutenant
Monique DeSart
as Madelaine (uncredited)
Madge Sinclair
as Saratoga Captain (uncredited)
Kimberly L. Ryusaki
as Tourist (uncredited)
Philip Weyland
Jack T. Collis
Production Design
Director
Steve Meerson
Screenplay
Donald Peterman
Director of Photography
Peter Landsdown Smith
Amanda Mackey
Casting
Joe Aubel
Art Direction
Peter E. Berger
Editor
Harve Bennett
Producer
Nicholas Meyer
Leonard Rosenman
Original Music Composer
John M. Dwyer
Set Decoration
Peter Krikes
Robert Fletcher
Costume Design
Mel Efros
Unit Production Manager
Mark Mangini
Sound Effects
Armen Ksajikian
Musician
Eddie Hice
Stunts
Ralph McQuarrie
Visual Effects
Story
Michael Lantieri
Special Effects
Chuck Picerni Jr.
Wes Dawn
Makeup Artist
Noyan Cosarer
Sound Re-Recording Mixer
Terry Porter
John C. Meier
Stunt Double
Nilo Rodis-Jamero
Assistant Art Director
Sharon Schaffer
Rolf John Keppler
Special Effects Makeup Artist
Richard Snell
David J. Hudson
Douglas E. Wise
First Assistant Director
Alan Howarth
Steve M. Davison
Hairstylist
R.A. Rondell
Stunt Coordinator
James Lee McCoy
Pat Kehoe
Mel Metcalfe
Brooke Breton
Associate Producer
Carol A. O'Connell
Ralph Winter
Executive Producer
Silvia Abascal
Jeff Dawn
Deborah Holmes Dobson
Rick Stratton
Frank Capra III
Second Assistant Director
Cliff Fleming
Spike Silver
Bruce Birmelin
Still Photographer
Bennie Moore
Douglas Freeman
Construction Coordinator
Ken Ralston
Visual Effects Supervisor
Gregory J. Barnett
Gene Roddenberry
Original Series Creator
Alexander Courage
Music