Suzy / Sue Ji Bae -  A 16 year old girl who lives on her own, her parents had splitted up when she was 5 and her mother married Bang Ki Hyun, CAP's(Teen Top) father. She didn't know they had split up until the age of 10. Few months later, she found out from her mum that her real father died from a plane accident when he went back to America. Suzy's past was painful and nearly commited suicide. Luckily, CAP treated her like a proper sister until she was old enough to look after herself and she forgoted about her past.

Tiffany / Hwang Mi Young - 21 year old Tiffany is Suzy's best friend. She's in and out, around and about. She's a great noona to Suzy and treats her like a little sister and knows about her parents and her step-brother CAP. She also meets Dalmatian with Suzy. She's a total flirt when it comes to boys who are older than her.

 Dalmatian: Drama / Lee Daniel Chae - 19 year old Dalmatian member, he's the main vocalist. He's the caring but messes alot at home. He loves older women around him but gets a bit annoyed when he's not in the mood. He also has a older brother called Lee Dongrim, his parents are in America doing some business and doesn't come back often. He sometimes gets annoyed with Youngwon hyung.

Inati / Jang Intae - Dalmatian leader Intae is 29 years old. He may seem old but his looks are there. He has quite alot of potential in himself and tends to be uptight. He may be a bad- for a reason in his family issues and swears alot. He treats his band members like little dongsaengs.

DayDay / David Kim - 27 year old Dalmatian rapper David. He's the crazy but lazy type. He tends to have fun with his dongsaengs. His family died in a car accident at the age of 4 so his grandparents looked after him until the age of 18. DayDay had painful memories in his past but seemed to forgot about them.

Dari / Lee Dari - Dalmatian rapper Dari is the dorky and fun member of Dalmatian. He looks after his hyungs and dongsaengs and treats the others like brothers. He's also known as the ''Pabo Comedian'' as what the others call his nickname instead of Dari, sometimes.

Jisu / Park Jisu - Angelic Dalmatian vocal, Jisu is 20 years old. He's one of most adorkable member in their group. He has alot of women around him and ask him out on dates. But he rejects them straightforwardingly. He starts to like Suzy in a few chapters.

Youngwon / Lee Dongrim - Youngwon, Drama's older brother who is 20 years old. He is the Dalmatian vocalist as well. He likes to stay in his room often when Drama is not around. Youngwon respected his parents but one day had an arguement with both parents and locked himself in his room for 5 days not eating or drinking. Drama was worried sickly but took over the fact that Youngwon just didn't have any appetite. He also has temper problems, knowing the fact that he mostly shouts at Drama.

Teen Top: C.A.P / Bang Min Soo - The leader of Teen Top. He's a total bad- amongst the others. He bumped into a Dalmatian member one day and wanted a fight. But Dalmatian said ''We don't do fights.'' Ji Bae aka Suzy is CAP's younger step sister but doesn't mention to other people except for his band mates.

L.Joe / Lee Byung Hun - Mischievious L.Joe, the bad- playboy who loves to play with the girls, he also plays the piano or violin out in public for entertainment. He liked Suzy from the very start and almost treat her like she's his girlfriend.

Ricky / Yoo Chang Hyun - One of the cutest member in Teen Top. He recently changed his personality and style. Now he's one of the bad-asses.

Chunji / Lee Chan Hee - The most power voice in Teen Top, His face might be a bit cute but his personality is the total opposite. He likes to study alot in their school.

Niel / Ahn Daniel - Teen Top's footballer Niel. He's the rough and loud one and tends to be the comedian as well. He treats s as brothers.

Changjo / Choi Jong Hyun - The maknae of Teen Top, the quiet one and loves to dance. He respects all of his hyungs. He loves to play cards with his hyung , Ricky.