Actor Kim Byung Ok praised Lee Kwang Soo's character.  

Kim Byung Ok appeared on KBS2 '1 vs 100' on December 20 and took on a challenge to answer all the questions to win the final prize. 

During the show, the actor discussed his current drama, 'Sound of Heart' and Lee Kwang Soo, who is playing his son on the show. 

Kim Byung Ok shared, "I was taking a nap on the set. Kwang Soo came over and asked, 'Dad, what are you doing? Please eat a little bit," and brought some snacks over. He was making sure his sunbaes had snacks. I felt thankful." He further explained, "I had never had hoobaes take care of sunbae's snacks." 

SEE ALSO: Seventeen's '17 is Right Here' albums allegedly dumped in bulk on streets of Japan