Mine would be Mission, Carth (unless I have him as a Jedi), Zalbaar, T3-M4, and HK-47, I usually only use Bastila, Juhani or Jolee. I only use Mission to unlock a side quest that has to do with her brother, Griff and Carth too to unlock his son Dustil and that sidequest. Other then that they don't get used, unless as I pointed out I put the override in to make Carth a Jedi, which he is funnily when you think about it since Dustil is at the Sith Academy on Koribban training to (SPOILER ALERT!) a Dark Jedi!