To save Earth from an alien probe, Kirk and his crew go back in time to retrieve the only beings who can communicate with it, humpback whales.
Alex Henteloff , Bob Sarlatte , Brock Peters , Catherine Hicks , DeForest Kelley , Eve Smith , George Takei , Grace Lee Whitney , James Doohan , Jane Wiedlin , Jane Wyatt , Jeff Lester , Joe Lando , John Miranda , John Schuck , Judy Levitt , Leonard Nimoy , Madge Sinclair , Majel Barrett , Mark Lenard , Michael Berryman , Mike Timoney , Nichelle Nichols , Nick Ramus , Phil Rub
