“Remember, reality is an illusion, the universe is a hologram, buy gold, bye!”
The symbols matching the characters here aren’t 100% sure (since Bill only proved three, which are Mabel’s, Dipper’s and Soos’) so I just went with what most of the fans speculated about the symbols (I didn’t add the Llama because there would be two Mabel’s, and there’s also a theory that Dipper is the ice as well, but yeah, same reason with Mabel’s) there are two Stan’s because there’s also this theory going around that he has a twin. So there you go!
It’s tough trying to humanize Bill. Shoot, the closest humanish thing I could compare to his character is probably Puck from a Midsummer Night’s Dream since they’re both sorta magical juvenile delinquents. Bill’s just a tad more deranged and unnervingly knowledgeable.