Cain recently caused turmoil in the family by embarking on an affair with Moira (Natalie J Robb) and later revealing the truth to her furious husband John (James Thornton). His antics mean that both John and Moira will become suspects when Cain is brutally attacked by a mystery assailant later this week.
Amy Wyatt (Chelsea Halfpenny), Jai Sharma (Chris Bisson), Charity Tate (Emma Atkins) and Zak Dingle (Steve Halliwell) will also be in the frame in the weeks following the shock incident.
Hordley told the Daily Record: "Of all the six suspects, I think the Bartons are the ones that get the short straw. He's always fancied Moira. He's never got on with John and he saw an opportunity there with Moira and just thought 'Right, I'm going to have some fun with you' and he doesn't care what the consequences are going to be."
The actor explained that he can understand why a twisted character like Cain would hold a grudge against the others.
"Amy has lied to him from day one," he commented. "She said she was 19 when she was 16, then she got pregnant. He said, 'Here's some money for the abortion', she took the money and did something else with it. As far as he's concerned, if she hadn't lied to him in the first place, if she'd had the abortion, he wouldn't be in this situation. He blames her and that's why he's gunning for her.
"As far as Charity is concerned, love has turned to hate. Jai is in for it as well because he's flaunting Charity in front of him.
"Zak keeps telling him to leave Charity alone, to leave Amy alone. That's a father-son thing and it's just a case of Cain thinking, 'Stop telling me what I should and shouldn't do - you're an old man, you can't tell me what to do'. He doesn't want anything to do with him and Zak isn't happy about that."
Emmerdale airs Cain's 'Judgement Day' this Thursday from 7pm on ITV1.
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