Ashley Walters, who plays Dushane, told the Daily Mirror that producers are making a "significant role" for the Canadian.
He says the rapper met the show's creators last week to talk about the role.
"We met up to start talking about the show and we are working out a role for him," he told the newspaper.
"He loves acting, of course he wanted a part. He's going to be really hands on and is getting stuck into it."