- D.D was born in a rich family from his father's side
- D.D is allergic to peanuts
- D.D said on knowing brothers that he is obsessed with watching family guys show
- His members said that he has a crush on Taeyeon and he has her on his lockscreen
- D.D studied law school, but he decided to go for an audition to become an idol
- on a question "would you rather lose your phone or credit card" he answered that he would rather lose his credit card
- when he first met stray kids, he said that the person who he felt most comfortable with was Hyunjin. Then when he found out that he can be very talkative, he wanted him to shut up.
- it is a well know fact that D.D always loses in eye contact game and his band mates like to make fun of him fro that
- he revealed on his vlive that he doesn't like clingy people, but if it's someone he likes, then he would bear with it.
- D.D said on happy together show that he was fighting depression when he was a trinee because it was very stressful and the amount of criticism made him self-concious
- he really likes sour things and would trade it with his regular food at any time
- D.D studied japanese language in high school, as it was one of his main subjects
- D.D said that he hated P.E the most
- Felix said that D.D is actually a very caring person, but he doesn't really want people to think about him like that
- all of his members confirmed that D.D is an all rounder and could do literally anything
- D.D said that he hates it when his band mates wake him up, because they pour water all over his face and it traumatise him
- Bang Chan said that he could always depend on D.D anytime and anywhere
- D.D had a collaboration with Bae Suzy, Bae Baekhyun, Kim Jennie, Seulgi, Hyunjin and many more
- He said that he doesn't like to be tickled, because then he forgets how to breath
- he said on his vlive that he had broken his leg 3 times and his mother was very strict to him because she was scared that he would hurt himself again
- D.D's father is a CEO in a car company
- D.D's parents were disappointed in him when he decided to drop out of law school, but they still supported him in his dream to become an idol
- D.Dsaid on his vlive that his parents love Bang Chan more than they love him