‘Arrow’s’ Katie Cassidy Loves Co-Star’s Sexy Chin-Ups: ‘I Made Him Do It With His Shirt Off’ (VIDEO)

'Arrow' Star: No Pressure
Stephen Amell says he wasn't nervous about the iconic role.
Heartbreak for 'Nikita'?
Maggie Q teases 'Mikita's' romance on Season 3.
Katie Cassidy knows a good thing when she sees it. After becoming the breakout star of The CW’s short-lived Melrose Place and guest starring on several of their other series, she has signed on to star on its new hero show, Arrow.

As Laurel, Cassidy’s character has a long, complicated history with her childhood friend, wealthy playboy-turned-vigilante Oliver. And the starlet has nothing but good things to say about the show’s star, Stephen Amell.

“He’s great. He’s a real hard worker,” she tells reporters at San Diego Comic-Con. “And he’s also so positive and confident. And that’s what co-stars want.”

What else do co-stars want? Cassidy reveals her shirtless request.

One of the highlights from the early trailers for the series includes Amell doing these pretty uh-mazing climbing chin-ups. Apparently when he was learning how to do them, Cassidy saw the early promise of having him do the exercise with less clothes on.

“I literally made him do it with his shirt off and videotape himself,” Cassidy, 25, laughs. “And I made him play me the video. And it was funny, because anytime we’d go out with the cast or friends and I was with him and someone hadn’t seen it, I’d be like, ‘Oh my gosh, you have to see this. Stephen, get your phone out.’ And I’d make him play the video.”

Watch Cassidy tell the story in the video above. And below, take another look at the shirtless chin-ups from the trailer.

Arrow debuts Wednesday, Oct. 10 on The CW.

Will you be tuning in for more shirtless co-star antics? Tell us in the comments section below.