Billy Harris is an unseen character, he has never appeared on screen.
Backstory[]
Billy is the son of Mo and Jimmy Harris. He is the brother of Jean Harris and the half-brother of Viv Slater. Not much is known about him. He is the uncle of Lynne, Kat, Belinda and Little Mo. He is the half-brother-in-law of Charlie Slater. He is the great-uncle of Zoe Slater and Tommy Moon.