Tony

 Tony is married to Alyssa's mum, and the father of Alyssa's two younger step siblings. It is obvious from the beginning of the series that Alyssa does not approve of him. He has made several inappropriate sexual remarks to Alyssa in the first episode of the show, and had also told her to "leave, do us all a favour" when Alyssa had complained that life is "bullshit." Tony is believed to be one of the reasons why Alyssa had ran away with James.