JUSTIN CAMPBELL / StarTraks 1 / 9
JUSTIN CAMPBELL / StarTraks 1 / 9

Katherine Heigl's costar is sticking by her side! Shortly after multiple insiders told The Hollywood Reporter that the former Grey's Anatomy actress is "difficult" to work with and "not worth it," Patrick Wilson has come to her defense -- stating that the whole ordeal is nonsense.

PHOTOS: See Katherine without makeup

"Now listen, this article that came out was because -- and you know how the press works -- she sold a show last week to NBC. Well great!" Wilson reasoned to HuffPost Live on Sept. 13. "So what do people do? 'Hey, let's rip her down a few days later,'" he said. "We all have reputations, whether they're true or not." It was recently announced that Heigl would be headed back to television in a new CIA drama on NBC.

PHOTOS: Most memorable Grey's Anatomy moments

Wilson, 40, and Heigl, 34, are starring in the upcoming dark comedy film "North of Hell" together. The "Insidious 2" actor will play Don Champage, a successful businessman who seems to have it all -- including an obsessive wife, played by Heigl.

PHOTOS: Guess these stars' celebrity aliases!

"She was not only not all of those things -- 'Oh, she was late and never came out of the trailer.' Nothing. She showed up, worked her tail off, super funny, super gracious, great to the cast, great to the crew, and was a total pro. Someone that's been doing it forever," he said of working with the blonde starlet. "You walk away and you go, well that's a great actress and a great person to work with."

Indeed, Wilson's experience working with Heigl went so well, he would work on future projects with her in a "heartbeat." He added: "I have to defend her because she couldn't have been a better experience."


Brad Pitt's changing looks

Mark Wahlberg's best shirtless looks

Prince William and Duchess Kate's cutest moments