Grey's Anatomy's Justin Chambers Misses Working With Katherine Heigl "All the Time"

"She's such a great actor. She's so fun to work off of," he says of his former costar

Katherine Heigl may be gone from Grey's Anatomy, but she's certainly not forgotten.

"I miss her all the time," Justin Chambers told me at the Maui Film Festival. "She's such a great actor. She's so fun to work off of. I miss working with her."

But that doesn't mean, we've heard the last of their onscreen romance…

As fans of the show know, Alex (Chambers) called out for Izzie (Heigl) when he was shot in the abdomen during the season finale.

"I think that's a couple on television that people will always remember," Chambers said. "There's not much Alex without her. I think he'll be mourning Izzie for the next two seasons."

Chambers also defended Heigl against her critics. "She admits that she has a mouth on her, but she's got a heart much bigger than her mouth," he said. "It's so unfair because I think people have taken her the wrong way. She's actually a good person. She's very funny and very kind."

Chambers was in Maui for the premiere of The Happiest Man Alive, a short in which he stars as a not-so-happy office worker. He signed onto the project after meeting director Andrew Goodman at the film fest last year. "Andrew was talking about how he wanted to make a short and I said, 'Dude, I'll make a short with you,'" Chambers said. "And we shook hands and we made it."