Oh, Guss and Forex are both good. I hated Guss' recruitment line but when I got to talking...he's just about the cuddliest fish I ever met. Such a sweetheart.
And M1-4X had me in stitches. There was a quest in Tatooine where I actually had to stop to get the laughter/tears out of my system, after I saved a young woman from a bombing:
Do some companions actually respond, with irritation, to multiclicking? That was my favorite part of Blizzard games for a long time - harassing Jim Raynor and Arthas and so on with a zillion clicks - but I long ago stopped trying it in BioWare games.