Trivia: William Shatner's contract for Star Trek IV stipulated that he would only be in that movie if he could direct Star Trek V.
Trivia: If I am correct the Yoman who gives Kirk the status report he signs on the bridge is in reality William Shatner's daughter, Melanie Shatner, who had also appeared in TOS Episode Miri as one of the children.
Trivia: This probe which the Klingon ship destroyed is either the Pioneer 10 or 11. This is based on the plaque it carries. The Voyager 1 and 2 spacecraft, launched a few years after the Pioneer spacecraft, had a child on their plaques along with the man and woman.
Trivia: The Vulcan word for Heaven or Eden was Sha Ka Ree, an intentional play on the name Sean Connery, the first actor asked to play the role of Sybok.
Trivia: Producer Harve Bennett appears as the Starfleet Officer who orders Kirk and the Enterprise back into action.
Trivia: Actor David Warner returned in Star Trek VI as Chancellor Gorkon.
Trivia: As Scotty holds the bag Uhura brought him, you can see that his right middle finger is missing. James Doohan suffered the loss of it during the war, and so usually kept his hand closed when it was on screen.