During the trial scene at the end of Star Trek IV: The Voyage Home, there are three women seated on the front row in the background who appear to be existing characters, but since we never see them up close I can't really tell. Here's an enlarged screenshot of the scene in question:
I've circled the two I THINK I know - Grace Lee Whitney as Janice Rand, and then next to her is Majel Barrett as Christine Chapel. I've also confirmed that both actresses have a credit on the film as their existing characters, but could find no other place in the film where those characters appeared.
Can someone confirm this for me, as well as identify the third woman?
Note: The third woman looks a lot like Leslie Bevis (Commanderette Zircon from Spaceballs, but Star Trek IV isn't listed in her IMDB filmography.)
UPDATE: Starlog #116 confirms that the middle woman in question is indeed Majel Barrett as Dr. Christine Chapel. She originally had a scene speaking with Sarek but it was cut from the final film.