SEE ALSO: Actress Lee Joo Shil passes away at 81

Lee Sung Min, who worked with Siwan on tvN's 'Misaeng' (2014) and is currently working with Junho through 'Memory', answered, "I was very comfortable with Siwan. With Junho, I feel more thankful. In 'Misaeng', I appeared as a mentor figure to Siwan. But in 'Memory', Junho is more like my aid. When I look at Junho through Tae Suk's eyes, I feel like I have a reliable donseng. He's someone I can depend on. Even yesterday, when we were filming face to face, I was a patient. So he looked after me quite well." 

The actor continued, "In 'Misaeng', there was a scene where Siwan looked at me with hearts pouring out of his eyes, but I think I get hearts in my eyes when I look at Junho these days. He's the most refreshing character here. He's killer." 

It seems like Lee Sung Min has great compliments toward both idol-turned actors!