Addie is having other-life memory flashes! She likes bartending, but alas does not know how to talk to other females. Or else I'd send her over to the bar to play and maybe be friends. Does Jo know how to turn strangers into friends? Perhaps she can show poor Addie how.
Holly definitely comes by for visits at the bar, and since she's a motorhead, too (though Holly is an everything-head, just try and stop her acquiring six new hobbies by the time this sentence is done, TRY!) they'd have plenty to talk about. Hot blondes, unite!?
I can see Verona hanging out around the bar too, just because bars are basically where she grew up and it would be comfy! She's not all that proactive about interactions but she goes along when she's chatted up...
John. I feel like I keep writing the same thing. Grumpy, grumpy! John will likely occupy a dark corner of the bar, preferably at times when it's either mostly empty, or too full for anyone to notice him. He might not despise Jo, though he probably won't seek her out, either... Because he's John.