I saw this coming when I saw all the abuse claims a few weeks ago from his wife. It's confirmed now that 'Harrison' will not be back for the next season of Scandal.

http://www.people.com/article/columbus-short-leaving-scandal-amid-abuse-claims

I wonder how they will write him out?
Also, I've always wondered, why did that other 'gladiator' leave after the first season? I don't know his real name and can't remember his character's name. He just wasn't there in the second season and they just sort of passed it over.