Hmm in LFIII, from what I can remember, there is Nash, Oglong, Lilly, Leanda in Chp. 13, Marilyis and Vanina depending on what you did in Chp. 1... That is all I think...
![Smile :)](./images/smilies/02.gif)
Oh, I forgot to tell how you could get them :P
Nash can be gotten as soon as you have Sarah for the first time. He is in a cave in Metrolian Wastelands near the Metrolian Counter.
Oglong is in Random's body. You need to talk to him a lot to get him join, and then not waster Luci's MP during the final fight.
Lilly can be gotten after Titanic in MSI, but I kinda forgot the quest to get her...
Leanda can be gotten in Chp. 13 if you got her in Chp.9, and if you steal her money so that she can't leave...
Marilyis joins sometime when you go to Ultai, don't remember when exactly...
Vanina joins in Rillian War Camp in Chp. 13...