Barrowman talks the fatherly twist: “We had lunch with Andrew Kreisberg. It was season 1, we were talking about the future of Malcolm Merlyn, it was myself and my partner who said, ‘Why don’t you make Thea my daughter?’ They wanted Oliver to be my son, and I said, ‘No, it’s too Star Wars.’ It’s, ‘Oliver, I’m your father.’ But if you do Thea then it creates a whole new can of worms because Oliver will have a very difficult time killing Malcolm because he knows what it’s like to lose a father and won’t want to kill his sister’s father. And also it meant I was guaranteed a job for a long time. Yay!”