Woops. I should have selected Tav as well as Gale. I haven't quite completed my Gale run, but nothing has radically changed my perceptions of him so far, but there are nice tidbits of extra characterization here and there. I've really enjoyed the extra Tara content. Her conversations strike a nice balance of funny and heartwarming. If I take control of a different character and try to talk to her in camp, she says, "Erm. Meow." in the most unimpressed, "I don't have time for this" tone imaginable.

I have noticed that playing as an established character encourages me to roleplay in ways I probably wouldn't if I was playing another Tav.