- ...that Billy's birthday is on October 15?
- ...that Billy and Angela have a black cat named Jinxx since September 2015?
- ...that Billy wi'll be the main character in a new show, Lab Rats: Elite Force, which is a spin-off series of Lab Rats and Mighty Med?
- ...that Billy was an A+ student in school?
- ...that Billy's full name is William Brent Unger?
- ...that Billy favorite teacher was his 4th grade teacher, Mrs. McDaniels?
- ...that Billy is obsessed with Spider-Man?
- ...that Billy's favorite subject in school was recess?
- ...that Billy's favorite color is red, and that his favorite color combination is black and red.
- ...that Billy is currently 22 years old?
- ...that Billy's lucky number is 3?
- ...that Billy would be the little brother of Sonny in Sonny With A Chance, before they reworked the show?
- ...that Angela Moreno is Billy's girlfriend and that they started dating on July 25, 2014?
- ...that his first role was in National Treasures: Book of Secrets?
- ...that Billy thinks that winter the most wonderful time of the year?
- ...that Billy most likely dated Alli Simpson?
- ...that Billy can play with accoustic guitar, piano, electric guitar and the drums?
- ...that Billy is in a band called California Chrome, founded by himself and where he's the main guitarist?
- ...that Billy's sister, Erin Unger, has a YouTube channel where she sings her own songs?
- ...that Billy graduated school when he was 15?
- ...that Billy used to date Teala Dunn?
- ...that Billy's Zodiac sign is Libra?
- ...that Billy has hazel colored eyes?
- ...that Billy's parents are divorced?
- ...that Billy's favorite shoes are Supras and Converse?
- ...that Billy was bullied because of his height?
- ...that Billy is born in Palm Beach Country, Florida?
- ...that Billy is good at stunts and would do anything, according to Kelli Berglund?
- ...that Billy is christian?
- ...that Billy's favorite band is Guns 'n' Roses and his favorite song of them is Sweet Child O' Mine
- ...that Billy's favorite song of the summer of 2015 is Sugar by Maroon 5?
- ...that Billy's favorite animated movie is The Incredibles?
- ...that Billy went to Paris with Angela for their 1 year anniversary?
- ...that Billy loves waffles?
- ...that Billy knocked himself out once, when he was 11 years old?