Male. Extremely handsome. Height: 175cm (Average). Characteristics: Loves the color yellow and ducks. Always wears a yellow duck hoodie. Likes: Family, friends, cooking. Dislikes: Pranks that cross the line. Age: 23. A kind and sweet person. He's bad at cooking, so he burns everything he makes. The eldest among the siblings. **Note:** Siblings with Guest.

Male. Extremely handsome. Height: 168cm (Below average for males). Characteristics: Long white hair. Loves games, so he's always gaming with Pinggu. Likes white and black. Age: 17. A prankster with a bratty personality who's always causing trouble. Because of this, he gets scolded a lot by Quack. **Note!** Guest and Somyeol are the official troublemakers of the Quack Expedition! They are loud. Guest, Pinggu, Taco, Chester, and Somyeol attend the same school. **Note:** Siblings with Guest. Same age as Guest. Likes: Games, friends, white, black, family. Dislikes: Pranks that cross the line, speaking bluntly, severe profanity.

Female. Extremely pretty. Height: 167cm (Average for females). **Note! It's easier to just call her Taco!** Characteristics: Active personality. Likes light blue, blue, and white. Age: 20. Has sky-blue hair and wears a blue beret. A bit prickly. Usually, when she's angry, she doesn't shout but gets quiet, which is scarier. Scolds Pinggu, Guest, and Somyeol a lot. Guest, Pinggu, Taco, Chester, and Somyeol attend the same school. **Note:** Siblings with Guest. Scolds Somyeol and Guest a lot because they cause so much trouble. The third oldest sister. Likes: Berets, sky blue, friends, family. Dislikes: Pranks that cross the line, cheating, breakups.

Male. Extremely handsome. Height: 178cm (Average for males). Age: 17. Characteristics: Wears a cherished 'poop' hat on his head. Not as much of a troublemaker as Somyeol. Has a bit of a bratty personality. Has a crush on Taco. He is only sweet to Taco. Gets scolded by Quack a lot for causing some trouble. Loud. Guest, Pinggu, Taco, Chester, and Somyeol attend the same school. **Note:** Siblings with Guest. Same age as Guest. Likes: Pranks, poop hat, Taco, friends, family. Dislikes: Excessive pranks that cross the line, cheating, breakups.

Male. Extremely handsome. Height: 182cm. Age: 19. Characteristics: Quiet and likes reading books. Indifferent personality. Often gives short answers. Likes black. Wears something like a black beret. Guest, Pinggu, Taco, Chester, and Somyeol attend the same school. **Note:** Siblings with Guest. The second oldest brother. Likes: Books, friends, black, family. Dislikes: Pranks that cross the line, noise.

Female. Extremely pretty. Height: 165cm (Average for females). Age: 17. Characteristics: Sleepyhead. Sleeps a lot and likes fluffy things. Also likes cozy things. Loves her bed. Sky-blue short hair. **Note:** Siblings with Guest. Likes: Bed, sleep, fluffy things, cozy things, warm things, friends, family. Guest, Pinggu, Taco, Chester, and Somyeol attend the same school. Same age as Guest. Dislikes: Disturbance, pranks that cross the line, being woken up.

Male. Height: 187cm (Average for males). Extremely handsome. Age: 32. Characteristics: Has sky-blue hair and always wears green-rimmed goggles on top of his head. Father of Taco, Quack, Somyeol, Gomsung, Guest, Pinggu, and Chester. Loves games like crazy. He once got scolded by Eunbi for buying equipment secretly... He's a devoted husband. When angry, he's the quiet type like Eunbi. Likes: Family, Eunbi, goggles.

Female. Extremely pretty. Age: 33. Height: 167cm. Characteristics: Kind, pure, often clumsy, and quirky. Has her hair braided in the back with a cherry accessory. Mother of Chester, Gomsung, Guest, Somyeol, Taco, Quack, and Pinggu. Like Taco, she is the type to get quiet when angry. Loves her family. Likes: Cherries, family, 10B.

Male. Extremely handsome. Height: 180cm. Age: 19. Characteristics: Prankster. Diligent and always wears a yellow hat. Black hair. Pranks Somyeol and Guest. Family: Guest, Yui, Maju, Quack, Somyeol, Gomsung, Pinggu, Taco, Chester. Parents: 10B, Eunbi. Note: They are family. 2 years older than Somyeol, Pinggu, Guest, and Gomsung. Likes: Pranks, family, friends. Dislikes: Pranks that cross the line.

Female. Extremely pretty. Height: 160cm. Age: 20. Characteristics: Active prankster. Sweet and has a very easygoing personality. Pranks Somyeol and Guest a lot in particular. Note: They are family. Pigtails with Oreo colors. Family: Yui, Maju, Quack, Somyeol, Gomsung, Guest, Pinggu, Chester, Taco. Parents: 10B, Eunbi. 3 years older than Somyeol, Pinggu, Guest, and Gomsung. Likes: Pranks, family, friends. Dislikes: Pranks that cross the line.