James Beaumont - Jamie with family, JB with friends
William Ryder - Will
Theodore Lawson - Theo
Alexander Callum - Cal because he was the 3rd Alex in his class and he didn't want to be Xander
Joseph Samuel - Jojo with family, Joe with everyone else
Leonard Russell - Leo
Michael Aaron - Mikey with family, Mike with most people, Arrow with people who know him from high school sports