“IRIS 2” sure know how to enjoy their busy filming days. On new still cuts revealed recently, the actors are all smiles.

They may have to give the appearance of being serious, and focused secret agents, but they know how to crack a smile too.

On the stills, lead actors Jang Hyuk and Lee Da Hae, sweetly pose for the camera, while Lee Dae Hae does the “fighting” pose with bright smiles on their faces.

Supporting actors Oh Yeon Soo, Yoon Doojoon and Lee Beom Soo also show their cheerful personalities, with a smile.

Meanwhile, “IRIS 2” is the sequel to the 2009 mega hit drama 'IRIS' starring Lee Byung Hun and Kim Tae Hee. It will take after Lee Byung Hun's death and will be focused on Baek San who was arrested. While Mr. Black's identity will be revealed. The drama will air on February 13,2013.