The Tomorrow People: Is Stephen's Big Secret Blown?

Stephen forgot the first rule of Fight Club being a Tomorrow Person: Don't let anyone find out about your superpowers!

After helping to save one of his classmates a few weeks back on The Tomorrow People, Stephen (Robbie Amell) teleported away from the train tracks just when Astrid (Madeleine Mantock) drove up. But when she confronted him, he lied to her face, causing a rift between Stephen and his only human friend. Has Stephen's big secret been blown?

The Tomorrow People's Luke Mitchell on John's game-changing secret

"She thinks she knows, but when you see someone teleport, you don't really know," Amell tells TVGuide.com. "Your mind won't let you believe that it's true. There's a very big talk about it in [Wednesday's episode]. We try and become friends again."

Astrid's cold reaction to his lie caused quite a stir for fans online, according to Mantock. "I've seen a lot of people saying, 'Astrid is so stupid!' They're calling her 'Pain in the Astrid,' which I love, I thought that was really clever," Mantock says. "They're annoyed with the way she reacted. They thought she was quite cold and not very understanding. Now she's actually seen him disappear and she wants him to explain himself and he lies. She really doesn't know how to take this. She's a bit put out that he's not been honest with her when he should've been."

That chasm growing between them will become even larger on Wednesday (9/8c, The CW) when the homecoming dance comes around. "He does come and try to make amends," Mantock says. "It's homecoming at high school, so there's a will-they-won't-they about whether or not they'll go together." But when it looks like Astrid may get stood up, she'll go to great lengths to unearth Stephen's secret that will put her in a dangerous position. (Read more about that here!)

Stephen will continue to walk a fine line with his secret after trying, and failing, to reveal it to Astrid in the pilot. "It's the superhero syndrome," Amell says. "Even though I've already tried to tell her before, now I can't tell her because the closer she gets and the more she knows, the more danger she's in. It's the Lois Lane thing. She can't know my other life and my super powers, but I'm sure it's just a matter of time."

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If Astrid is Lois Lane, what does that make Cara (Peyton List)? "Cara is like the Wonder Woman," Amell jokes. "They have this connection ever since the first episode when she was inside his head. She was the person who talked him through this terrible time. You find out more in the next few episodes that there is something deeper, something that they can't explain, there's some sort of connection between the two of them."

Still, Amell doesn't rule out Stephen and Astrid's chemistry. "Astrid is the best friend," he says. "If movies and television have taught us anything, it's that the best friend is probably the one he ends up with. There's a definite chance for either one. There's already the relationship between Cara and John [Luke Mitchell], so it's a love rectangle."

Just don't expect Stephen and Astrid to get together anytime soon. "Stephen has other offers," Mantock says. "Newer people are in his life who may be a little more interesting than Astrid at the moment. But there are a few potential suitors for Astrid."

Who do you think may fill that position for Astrid? Russell (Aaron Yoo) is single! Hit the comments with your guesses!

The Tomorrow People airs Wednesdays at 9/8c on The CW.

(Full disclosure: TVGuide.com is owned by CBS, one of The CW's parent companies.)