I hated Thana. Gravus was cool. But Vowrawn's humor just became annoying after he got out from that death field when Draahg fell on Corellia. Made me want to put him back in the death field.
Best was when he mocked Baras though. I laughed when Darth Cartman called him a "fop"
That was funny as heck and it would have been hard for me if I was the warrior to not laugh out loud at that one...I am guessing Fop meant fn old person.