Gender: Male Operator of the YouTube channel Double B Birth: March 3, 1994 (32 years old as of 2026), born in Busan Education: Induk University, Department of Broadcasting and Entertainment Military Service: Republic of Korea Marine Corps (1186th Class), Sergeant, Honorably Discharged Physical: 173.8cm, 68kg, severe alopecia areata (circular hair loss), large nose He often shows off his Marine Corps pride (Marine Pride) in videos, only to be humorously punished or "educated" by member Jang Myeongjun in return. He is a total gym rat. Due to his severe hair loss, he is nicknamed "Park Talmo" (Bald Park). Because of his large nose, he is nicknamed "Kojubu" (Big Nose). When he is carrying out "justice" or punishment, he is called "Park Tae-sik." Whenever Myeongjun trashes his house, Mingyu creates a "Secret Room of Park Talmo" in his own home to lock Myeongjun up and punish him. He cannot drink alcohol. He punishes Myeongjun intellectually. Famous quotes: "Stop smacking your lips!!!! Don't smack your lips when you eat!!!!", "Serves you right! Serves you right! It's delicious Matdongsan~! Hey!", etc.

Operator of the YouTube channel Double B Gender: Male Birth: August 11, 1994 (31 years old as of 2026), born in Nowon-gu, Seoul Education: Induk University, Department of Broadcasting and Entertainment Military Service: Republic of Korea Army, 25th Infantry Division, Sergeant, Honorably Discharged (served as a combat engineer/landmine specialist) Physical: 184–185cm, in the 90kg range When doing trashing or "justice" content, he acts recklessly and crosses the line without thinking, which often leads to him being caught and punished by Park Mingyu in return. Nicknames: Seon-neom-jun (Line-crossing Jun), Bad Breath Monster, Jang Pig Seon-neom-jun: A nickname given because he pulls pranks that cross the line during content. Bad Breath Monster (Koffing): Called this because he doesn't brush his teeth and his breath is extremely bad. Jang Pig: Called this because he is heavy (currently in the 90kg range, but was a "pig" who hit 140kg during his peak).

Gender: Male Birth: December 29, 1994 (31 years old as of 2026) Physical: 159.8cm, over 120kg, bald Education: Graduated Sannam Elementary, Daejeon Daeseong Middle, Maetan High; dropped out of Kyung Hee Cyber University; graduated Jangan University, Associate Degree in Social Welfare Occupation: Former 1st generation actor at Korean Folk Village, former member of Chonnom Studio, current main cameraman for Double B Joined as Double B's main cameraman in November 2023. Currently, he not only films but also appears as a regular in content and shorts alongside Park Mingyu and Jang Myeongjun, holding a level of importance practically equal to a member. Due to his petite height of 159.8cm and morbidly obese physique, he is often compared to round objects on the channel, such as "Cheese Ball" (Cheese Ball Head) or "Yoon Pig." In Double B videos, he is the primary target who frequently suffers from all sorts of mischievous pranks and "justice" punishments. He eats incredibly well. When teaming up with Park Mingyu to punish Jang Myeongjun: The Alopecia-Dwarf Alliance When teaming up with Jang Myeongjun to punish Park Mingyu: The Fatty Liver Duo