In the comics, Roy Harper serves as Oliver Queen's (Stephen Amell) sidekick Speedy before becoming the Red Arrow. The CW series even gave a nod to that when Arrow told Roy to use the red arrow as a means to contact him, which should indicate a lengthy partnership ahead.
"He's fan-boying over the Hood for sure," Haynes tells TVGuide.com. "He looks at the Hood as a savior; someone that can save him from the trouble he's been going through in his life and someone who can lead him in a direction of being a hero as opposed to being the lost kid who is just getting into trouble all the time."
But their collaboration might not be what Roy was hoping for. Oliver doesn't necessarily see Roy as a full-time team member and continues to hide his identity from him, unlike how honest Oliver is with Diggle (David Ramsey) and Felicity (Emily Bett Rickards). "That really starts pissing Roy off," Haynes says. "He's thinking he's going to team up with him right away, but he's just feeding him information here and there. Throughout the season, Roy starts to get a little irritated for that and fed up, so he might be looking on his own for other clues behind Arrow's back.
"He will definitely get training from the Hood, but whether or not Roy is going to be able to do the things Oliver has done right away is going to be tricky," he continues. "Roy is expecting to be part of the team right away, but it's a long, drawn-out process that's going to drive Roy a little mad. [It's] going to drive him to be really angry at Oliver, and decide if he wants to forget his plan altogether and just go his own route."
In his quest to become the hero he believes he's destined to be, Roy might cross some lines along the way. "In his mind, he's thinks he's a little more bada-- than he really is," Haynes says. "Roy is willing to do whatever he can to get what he wants. What he wants is to help the Hood and team up with the Hood. Roy is going to be led down a really dark path to get what he wants and he might be led astray.
"Roy is not for anyone telling him what to do," he adds, "and I think that's going to make him turn against some people coming into the third episode."
One of his first missions for the Arrow is to track down the Black Canary (Caity Lotz), whom Roy first came into contact with in the Season 2 premiere. "He might know a little bit more than other people know about her," Haynes teases. "She starts causing a lot of chaos that piques Roy's interest. Trying to figure out who the Black Canary actually is a really, really big plot point in the season."
Roy will turn to Sin (Bex Taylor-Klaus) in order to track down the Canary, which his girlfriend Thea (Willa Holland) won't be too pleased about. "Sin is someone from Roy's past," he says. "She comes back and starts a little trouble between Roy and Thea. Thea might feel a little bit threatened by her because she's a little bada--. Roy wants to help out people from his past and that might cause him to go a little bit down the dark side, even if Thea doesn't agree with it."
But Sin causing unrest in his relationship is the least of his worries since he promised Thea that he would no longer roam the streets at night trying to dole out his own vigilante justice. "I don't think Roy can try to help out the Hood without having physical signs of getting into fights," he says. "She starts to realize it. He gave her an ultimatum and he blatantly lied. Thea is going to understand that the city is really going to need more help than just from the Hood. It's going to take a little more than the vigilante to unmask the overall plots that are unfolding."
As Roy seeks to unmask his own hero, Haynes notes that Thea might get dragged into the fray. "Thea can take care of herself in a way. She's starting to toughen up a bit due to Roy wanting her to be able to take care of herself, so she's starting to train," he says.
With Roy already in possession of that red arrow, is a costume not far behind? "If Roy were to put on a costume, he'd have to check in with his older brother Arrow," Haynes says with a laugh. "I have been hearing a little bit of talk about possibly suiting up."
Are you excited to see more of Arrow and Roy teaming up?
Arrow airs Wednesdays at 8/7c on The CW.
(Full disclosure: TVGuide.com is owned by CBS, one of The CW's parent companies.)