Lucifer Alum Liam Hall is joining the cast of Arrow come season 6 as the role of Joseph Wilson, Deathstroke's son and potential metahuman.
Here is the official character description of Joseph Wilson:
The son of one of the Green Arrow’s greatest foes, Joe Wilson has followed in his father’s footsteps by joining the secret Australian military agency, A.S.I.S. After years of brutal combat, Joe now finds himself in a remote Kasnian prison under the alias, Kane Wolfman, fighting for his life.
The name Kane Wolfman seems to be a reference to his comic book creator Marv Wolfman and DC artist Gil Kane who helped bring Deathstroke and Joe to life.
Now Joe may go as a different name if your a comic fan as Jericho and here is a comic description of Jericho:
When Joe, better known in the comics as Jericho, was a child, he was held hostage by The Jackal, a terrorist who was after his father. Deathstroke refused to give Jackal the information he wanted because it went against his professional code of ethics. Deathstroke managed to rescue his son, but not before one of Jackal's men had started to cut his throat. As a result, he was rendered mute.
Jericho's metahuman power, a result of the biological experimentation done on his father years before, appeared in his late teens, while trying to save his mother from an assassin. He is able, essentially, to use an astral projection-like power to take over the bodies of others, speaking and acting convincingly like them while controlling their words and actions.
Arrow season 6 is set to hit the small screen October 12, 2017.