SEE ALSO: Joo Won reveals he's not the type to play hard to get when it comes to dating

When asked about her former co-stars in a recent interview, Moon Chae Won dished, "Their diligence and sincerity can not be compared... It is good that I get to work with such diligent actors."

"In an actress' perspective, it is most comfortable when I don't have to ask, 'Let's do this reading', and 'Let's try this scene together', when acting. I am really thankful that they made me feel comfortable."

"Song Joong Ki is one year older than me and Joo Won is one year younger... To be honest, if we're one year apart, I think it's okay to be considered as same-age colleagues. We're around the same age so it was comfortable to work with each other."

When asked how her male co-stars described their first impression of her as "cold", Moon Chae Won shared, "I don't know why that is the case. When I was a rookie, I was nervous and didn't know how to approach others, but I try to approach people a lot more now."

Moon Chae Won was fortunate enough to work with Song Joong Ki and Joo Won in 'Nice Guy' and 'Good Doctor' which both ended up becoming hit dramas.