Huh, it wasn't until Target Audience mentioned it, that I noticed this is the one shot in Star Trek with ALL the series regulars in one shot.
You have the main seven up front, but in the background you have Grace Lee Whitney's Janice Rand and Majel Barrett's Nurse Chapel, just behind Kirk.
Mark Lenard's Sarek is there, too, as he's as much a movie regular as any of the others.