Jacob: came with Serefin as his ~date~ and wore this with a rugged gold mask. He's surprisingly gentlemanly when the occasion calls for it and he respects the Hargreeves a lot but he's still going to zoom in on Diego's face with his phone and whisper things like "wait, wait...is that the glisten of a tear I see" to Serefin. He won't even RECOGNIZE his sister at first and then he'll just be like WHY THO. (He'll tell her she looks nice eventually, he just has to be a shit first.) He's an OK dancer to go with Serefin's hopeless case so he'll goof off with him and dance with anyone else who's interested in some old fashioned English dances! Oh and he brought a wooden memory box for a gift.
Nursey:LOOKS SHARP. He's wearing a black lacy mask because gender is a construct. He'll stick close to the Check Please crew and eat a lot of cake but he's a sucker for a dance floor so he'll be all over it. He'll try to find Ben for a dance and sneak him a pot brownie on the sly too. Yes it was in his pocket, but it's well-wrapped ok.
Ezio: loves an excuse to dress up and he's a huge fan of a masquerade. And weddings tbh. He'll be very respectful and charming and only blatantly heart eyes at Leonardo when he's sure he can get away with it. (Which is still a lot.)
Ronan: came with Adam and the gangsey and is predictably all in black. But he's wearing a tie! And it's actually tied! His mask is a metal original by Toph that looks like a platypus but listen, it's like if a punk band designed a platypus so give him shit at your own risk. He's going to be a little soft about this whole thing because he's never been to a wedding and he's a closet-case romantic so take advantage of his good mood. He'll dance a bit, even get a little goofy with Noah and Blue, and slow dance with Adam with obnoxious eye contact. He brought a small painting of the couple's silhouette in front of a vallo city backdrop full of color for a gift.
Henry: came with Blue and Gansey and the gangsey. He's wearing a pink suit and a colorful venetian mask. He's not especially a GOOD dancer but he doesn't mind making an ass out of himself. He took a ton of pictures and will send them to the couple later!
Bash: came with Anne (and Gilbert hopefully, he would definitely have been like "she says I have to go which means you have to go" lmao). He won't be convinced to spend money on a suit just yet so I'm going to say he showed up to Vallo in this so he can wear that and grab a yellow mask from the offered masks. He DID spend money on a cute little dress for Delphine tho. He's VERY out of his element but he's good-natured and polite and very O_O about an interracial wedding. He dances like an embarrassing dad.
Aang: will drop by to hang out with the King and dance and eat everything he can stuff in his face. He wore his regular monk outfit but he had his Toph made mask to go with it. He'll bow to the happy couple and swirl some flowers through the air with airbending in place of the whole rice throwing thing.
Jesse: came with Syd in a western-inspired suit that surprisingly isn't tacky for once. He's still wearing his BAMF belt buckle but he left the spurs at home and has a coyote mask. He'll be friendly with the couple and bug Dwight and definitely line dance sorry not sorry, Syd.