Sammy Feder is the adopted oldest of Lenny Feder and Roxanne Feder being 21 years old and an inspiring musician. Juliet aka Julie or Jules Lamonsoff is the adopted oldest child of Eric Lamonsoff and Sally Lamonsoff being only 20 years and also an inspiring musician as well. When Sammy and Julie meet it's like fate they believe. Follow their journey throughout the book. *Grown Up 1&2*

Christina Brock is Colby's twin sister and Sam's girlfriend (Kat will only be a friend to both Sam and Christina and Sam and Kat never dated). Christina lives with them and has her own YouTube channel and when Sam gets his apartment she will live with him.

Artemis Reynolds is Jackson's best friend. She moved in with the Fuller's after her parents died in a crash and sharing a room with Jackson and Max. Artemis starts to have feelings for Jackson but will he have the same feelings?

Camila Feder is Lenny's oldest daughter and oldest kid. She has a boyfriend named Shawn Martin who lives with her and her family. Camila sings with Shawn and she can draw, dance and she's very acrobatic.

Sofia Frantzich is Jonah's younger sister by 2 years. She's 19 and she's a singer. She is also Daniel's girlfriend and she tours with them as well. She's also fun as hell to be with.

Aurora Hall is Bryce's twin sister and Griffin's girlfriend (Griffin and Dixie were never together or seeing each other). She lives in the Sway house with the boys and is an influencer as well.

Daphne McLoughlin is Sean McLoughlin aka Jacksepticeye's sister. She plays video games and makes music for a living and live in LA with her friend Valkyrae. She also began dating Corpse Husband in December or 2020.

Mackenzie Frantzich is Jonah's twin sister and dating Eben, Why Don't We's opener. She sings, dance, writes, draws and play video games.

Hyun Joseph aka Joey is the 6th member of TXT. He is also the oldest only being 23 and an all rounder being able to sing, dance, rap and a visual for his group. He was also the last member to be revealed to the public.

Alexia Hofstetter is Valkyrae's younger sister. She is a streamer and a YouTuber just like her sister Rachell and has been dating faceless YouTuber Corpse Husband for a few months already. She is also friends with her sisters friends as well.