Tom Cavanagh Tom Cavanagh

Is Harrison Wells (Tom Cavanagh) good or bad? That's the question that's been haunting fans of The Flash since the drama premiered in October.

Go behind the scenes of The Flash

To get the answer, visited The Flash's Vancouver set to grill the cast on Harrison's true motivations. "The audience obviously should not trust Wells. I don't think so from what we've gathered thus far," Grant Gustin says. "Barry has no reason not to trust Wells right now though. He's always looked up to him professionally and now, it seems anyway, that he has Barry's best interest and that he's looking out for him."

See what the rest of the cast has to say about Harrison in the video below: