"My spin-off would probably be a reverse perspective of all of the bad guys who have come onto 'The Walking Dead,' and seeing it from their point of view," Gilliam, who played Father Gabriel since season five, told Insider.
"What's Negan's response to coming in and finding all of his Saviors dead in that outpost in a war that he didn't start?" Gilliam said of Rick's group viciously murdering some of Negan's people in their sleep on season six, which ultimately led to Glenn and Abraham's deaths and then a massive all-out war.
"Rick essentially started the war," Gilliam said. "Though Negan was out terrorizing the countryside and taking over land and approaching coming towards them. Rick really fired the first shot. So I'd like to go back from every villain's point of view and see what that would be like, have a commentary on heroes and villains."
"When we suggested, "The Walking Dead: Villains" as a title, Gilliam excitedly agreed.
"Yes, 'The Walking Dead: B Side.'"
In our previous conversations with Gilliam and Jeffrey Dean Morgan, who plays Negan, we've learned that Father Gabriel considers himself one of Negan's few pals, regardless of whether or not Negan realizes that.
"Seth and Father Gabriel are Negan's real only fans," Morgan told us in February.