While promoting his latest stage project, South Korean actor Yoo Jun-sang has been getting a lot of attention for sharing very personal information about his family history, such as the death of his father and his mother's long-term illness.

The actor was on KBS 1TV's "Morning Plaza" with Jung Sang-hoon to talk about their upcoming musical "Swing Days: Codename A." During the show, he discussed the emotional events that have shaped his life and career.

Xportsnews says that Yoo talked openly about his late father and how his death has affected him for a long time. He expressed his feelings by explaining that his family initially did not want him to be an actor.

Yoo said, "Although they opposed it, I still have a deep affection for my father. In fact, even now, when I look at a star, there is a star we named 'Dad's Star,' and it is always aligned perfectly with the moon." He went on to talk about when his father died. "My longing for my father was that intense, but he passed away right after I returned from the military."

READ MORE: 'Unexpected You' Jang Yong And Yoo Jun Sang's Reunion

The actor also thought about how old his father was when he died and how it affected him personally. "Turning 50 was the hardest time for me. I wondered if I might pass away too. Fortunately, I made it past 50."

Yoo talked about how his father's influence has shaped his life and creative work since then. "I constantly have thoughts of my father in my heart. I think it is his presence that even inspires me to write children's books. To me, my father is a friend and a mentor who is always by my side, supporting me whenever I am struggling."

He then discussed more problems his family was having, like his mother's health. He said, "My dad died from a brain bleed." My mother also fell down right after my second child was born, and she still can't use her right side. "Even though I'm in so much pain, I'm living positively," she said.

TenAsia says that Yoo said similar things during the same broadcast, stressing how important his father will always be in his life. He started his reflection by saying that his father was a big influence on him.

Yoo said, "My father passed away right after I returned from the military. He was 50 years old," adding, "When I turned 50, it was the hardest time for me."

He went on to talk about how these events helped him grow as a person. He said "After my father passed away, I became the head of the family immediately. I think I matured quickly in my early 20s. I'm naturally very positive and cheerful, so I hid my difficult emotions and carried on confidently. I did everything I could after debuting."

Yoo Jun-sang is getting ready for "Swing Days: Codename A," a musical about the life of independence activist and businessman Yoo Il-han. The show will open on April 16 at the Grand Theater in the Chungmu Arts Center.

READ MORE: How Did 'Unexpected You' Kim Nam Joo And Yoo Jun Sang First Meet?