Zoey

Marie

Ignacio

Galen

Ollie

Tala

Quinn

Bodie

Teacher

British

Vampire Bodyguard

Francis

Woman

Bodyguard

The Narrator

African lady

Soft Bubbly

Southern

Robot

Hailey

French

Hood

Indian Girl Accent

A French Girl

Male Russian Accent

Irish

The joke behind Billy is that Zvardin (and the community) has given the name Billy to ULB-278 and is now since been a running gag, and is still being used by the community in many comical ways, such as villain arcs, memes, and even games based around Billy.
Billy is 5 years old.
There are some videos on Zvardin's channel, it being "billy's awesoem sogng !!!11 1 

Billy

 Villain Arcs, Memes, Billy is 5 years old