amy (the most wonderful woman in the world)'s deathly allergic to caramel.
Bryan (an immortal) spent one of his lives as Jesus Christ after losing a bet to an actual God. Xe doesn't bring it up often.
andrew (Our Supreme Lord and Overseer) writes in the "Roboto Mono" font, but he barely ever writes, instead preferring to type his messages out. He also has cleithrophobia (fear of being trapped), but I haven't really brought it up in my story yet, so I'm counting it.
Jack is a biromantic asexual, but it never comes up because I can't write romance to save my life.
Jody is 3'10'' at the start of her story, and 4'9'' by the end. She has to suffer from a lot of jokes from her friends because of this.