By Sandra Gonzalez
December 05, 2012 at 08:47 PM EST
Jack Rowand/The CW

After a turn on Showtime’s Dexter as informant-turned-love interest Anton Briggs, David Ramsey knows how to protect the integrity of a good plot twist. But it didn’t stop him from giving out juicy teases about what awaits Arrow fans in the last two episodes of 2012.

“[After the midseason finale] you’re going to be left thinking, ‘No, they didn’t!’ It’s that big,” says Ramsey, who plays Oliver Queen’s (Stephen Amell) confidant/partner in crime Diggle on the CW series.

In just seven episodes, Arrow has already delivered a few shocking moments — one of the biggest being when Diggle learned of Oliver’s secret identity. So how will this midseason cliffhanger measure up? “[On] Dexter, they had this huge cliffhanger at the end of one of the seasons where they killed off [Dexter’s wife] Rita…It’s going to be bigger than that,” says Ramsey. “Huge.”

Before the end of the year also look for Diggle and Oliver to clash over the hero’s involvement with Helena/Huntress (Jessica de Gouw), who last week became the second person to learn Oliver’s secret. “It’s going to be somewhat contentious between Diggle and Oliver because of her presence in his life,” he says. “Diggle has some very strong feelings about who Helena is and so does Oliver. And they won’t see eye-to-eye. It’s going to cause some difficulties, and I think this comes from Diggle [often] seeing things in a way Oliver doesn’t.”

Their differences are exactly what make them a great pair, though, says Ramsey. “I think [Diggle] sees himself as offering something Oliver really can’t do by himself. And I think that’s why Oliver selected him; this was not an arbitrary selection,” he says. “So you will see him standing up to Oliver. I think it’s delivered in a way where you see that Oliver needs this.”

Meanwhile, Ramsey teases that an upcoming episode will also see Diggle’s backstory “come to life” as viewers learn new information surrounding the death of his brother, who was killed by an assassin. “Right now, lots of what we see is Diggle facilitating Oliver’s growth — and I think all the characters do to some degree,” he says. “But [viewers will see] more of Diggle’s backstory and you’re going to see more of what his relationship with Oliver means to his own family.”

New episodes of Arrow air on the CW.


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