Big Mouth/Thomas

Version 1 (by Dynasti the Radicles Fangirl)

 * Nicholas Arsenio "Nick" Birch as Thomas
 * Andrew Glouberman as Percy
 * Maurice the Hormone Monster as Sir Topham Hatt
 * Coach Steve Steve as Gordon
 * Jessi Glaser as Emily
 * Jay Bilzerian as James
 * Missy Foreman-Greenwald as Rosie
 * Connie the Hormone Monstress as Lady Hatt
 * The Ghost of Duke Ellington as Henry