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.
Kirk
William Shatner
Spock
Leonard Nimoy
McCoy
DeForest Kelley
Scotty
James Doohan
Sulu
George Takei
Chekov
Walter Koenig
Uhura
Nichelle Nichols
Sarek
Mark Lenard
Amanda
Jane Wyatt
Commander Chapel
Majel Barrett
Federation Council President
Robert Ellenstein
Klingon Ambassador
John Schuck
Admiral Cartwright
Brock Peters
Lt. Saavik
Robin Curtis
Gillian
Catherine Hicks
Starfleet Communications Officer
Michael Snyder
Starfleet Display Officer
Michael Berryman
Saratoga Science Officer
Mike Brislane
Commander Rand
Grace Lee Whitney
Alien Communications Officer
Jane Wiedlin
Starship Captain
Vijay Amritraj
Saratoga Helmsman
Nick Ramus
Controller #1
Thaddeus Golas
Controller #2
Marty Pistone
Bob Briggs
Scott Devenney
Lady in Tour
Viola Kates Stimpson
1st Garbageman
Phil Rubenstein
2nd Garbageman
John Miranda
Antique Store Owner
Joe Knowland
Waiter
Bob Sarlatte
Cafe Owner
Everett Lee
Joe
Richard Harder
Nichols
Alex Henteloff
Pilot
Tony Edwards
Elderly Patient
Eve Smith
Intern #1
Tom Mustin
Intern #2
Greg Karas
Young Doctor
Raymond Singer
Doctor #1
David Ellenstein
Doctor #2
Judy Levitt
Usher
Teresa E. Victor
Jogger
James Menges
Punk on Bus
Kirk R. Thatcher
FBI Agent
Jeff Lester
Shore Patrolman
Joe Lando
CDO
Newell Tarrant
Electronic Technician
Mike Timoney
Electronic Technician
Jeff Martin
Marine Sargent
Joseph Naradzay
Marine Lieutenant
Donald W. Zautcke
Madelaine (uncredited)
Monique DeSart
Saratoga Captain (uncredited)
Madge Sinclair
Tourist (uncredited)
Kimberly L. Ryusaki
Tourist (uncredited)
Philip Weyland
Passerby (uncredited)
Layla Sarakalo