Home and Away newcomer Christian Clark has predicted that fans will be stunned when they discover the truth about his character Penn Graham.
The actor's alter ego has been shrouded in mystery since making his debut in Summer Bay last month, leaving fans to wonder what he could be hiding.
Speaking to TV Week about the storyline, Clark commented: "The audience is in on 90% of the journey with Penn, so they know what he's saying and doing.
"But one episode he'll do something genuinely heartfelt and then the next episode he might lie. We don't know where he stands."
Asked whether fans will be surprised when the truth is revealed, Clark replied: "100%. They'll be very shocked. I know I was!"
The 30-year-old previously played the role of Will Griggs in rival soap Neighbours.