<BTS>

Father: Namjoon

Mother: ex-wife

Children: Seokjin, Yoongi, Hoseok, Jimin, Taehyung, Jungkook

<Got7>

Father: Mark

Mother: unknown

Children: Kunpimook (BamBam), Yugyeom

<Monsta X>

Father: Shownu

Mother: unknown

Children: Kihyun, Wonho

<Monsta X>

Father: Minhyuk

Mother: unknown

Children: Jooheon, Hyungwon

<EXO>

Father: Xiumin

Mother: unknown

Children: Sehun

<SEVENTEEN>

Father: Seungcheol

Mother: unknown

Children: Jeonghan, Joshua, Wonwoo, Mingyu, Woozi, Dino

- other miscellaneous characters you probably forgot about -

<BTS>

PD-nim (aka Hitmang Bang): adult; Namjoon's boss

<Got7>

Jinyoung: adult; works with the police as an IT specialist; helped with Jimin's abduction case

Jaebum: adult; police officer (Lisa's partner); shares a flat with Youngjae; helped with Jimin's abduction case

Youngjae: adult; sketch artist; shares a flat with Jaebum; helped with Jimin's abduction case

<Day6>

Wonpil: child; friends with Hobi; went to a different high school because of zoning issues

<Blackpink>

Lisa: adult; Namjoon's girlfriend(?), took lead on Jimin's abduction case; Mark's sister (BamBam & Yugyeom's aunt)

<B.A.P.>

Youngjae: child; Hyehyeon's son; died at age 4 in a car crash

Jongup: child; bullied Jimin in preschool, was friends with Hyuuk; became friends with him in high school; became friends with Tae in high school

<VIXX>

Hyuuk: child; bullied Jimin in preschool; friends with Jongup until Jongup stopped being a bully; started bullying Jongup (*note: some sites list his name as 'Hyuk' and others as 'Hyuuk')

<TWICE>

Jeongyeon: child; Hobi's date to the high school dance; was also asked by Yoongi

<Eric Nam>

Eric Nam: adult; principal of the middle school; familiar with Yoongi getting into trouble; member of the CEF (by force)

<Monsta X>

Changkyun (aka I.M): child; football player; switched to quarterback; competed against Jin for the football scholarship

<Red Velvet>

Seulgi: adult; went on one date with Namjoon

<Brown Eyed Girls>

Miryo: adult; tutored Jimin after he was found

<OC's>

Song Eungi: adult; preschool teacher; abducted Jimin; temporary mother to Jimin

Song Chul: adult; Eungi's husband; temporary father to Jimin

Yoo Hyehyeon: adult; preschool assistant in charge of snacks; suspect in Jimin's abduction case

Namjoon's ex-wife: adult; never given a name; cheated on Namjoon and left the family; later claimed custody over three of her children

Namjoon's ex-wife's new husband: adult; never given a name; high-ranking businessmen in Namjoon's ex-wife's workplace

Mr. Mok: adult; high school principal; advised that Jimin enroll in gym

Coupon Lady: adult; never given a name; advised Namjoon that 59 cents is nothing to cry over

Toaster: cat; found underneath Namjoon's ex-wife's house; saved by Jimin

Lala: flower; given to Jin at school; may or may not have been fed Kumamon's ashes

Kumamon: stuffed animal; belonged to Yoongi; accidentally incinerated by Hobi; location of ashes unconfirmed

Gerald: spider; killed in Yoongi's school; started the #justiceforgerald support group

Microwave: dog; Yoongi's service dog for epilepsy

Goldfish: fish; not given a name; died in Yoongi's class; Yoongi didn't kill it (we think)

if there are any that I forgot, please inline comment their name here and I'll add a description for them :)