Princess of Angels :

Park Jae Hwa (youngest of the royal family)

Parents :

Park Daejoong (father - current King), Park Ae Hwa (pronounced aa-wa, mother - current Queen)

Siblings (oldest to youngest) :

Park Chorong - sister -

Park Eun Hwa - sister - missing

Park Minjoong - brother - searching for Eun Hwa

Park Yeun Dae - sister - helping Minjoong

Park Min Hwa - sister - helps Jae Hwa

Friends:

Kim Mi Young 

Jung Ji Soo

Lee Seo Eun

Yoo Hana

Eun Hwa's Friends (The three great witches)

Do Hyun Roo

Kwon Young Ah

Byeon Seo Ji

Nicknames :

Park Jae Hwa - Jae

Park Eun Hwa - Eun

Park Yeun Dae - Yeun

Park Min Hwa - Min

Park Minjoong - Joongie

Lee Seo Eun - Eun

Jung Ji Soo - Sooji

Others :

Byun Chae Ah - School Queen (bully but scared of Jae)

Dong Hyuk Ja - Chae Ah's boyfriend 

Lucifer - Very powerful angel (Royal but banished)

Members of Chae Ah's group:

Kang Jong Ji - Kangji

Oh Tae Hee - Taehee

Yoon Ah Juk - Juk-ah

Bae Li Ji - Liji

Lucifer's group:

Left to right :

Yongguk,Himchan, Daehyun, Youngjae, Jongup, Zelo

Luhan & Friends

From left to right:

Sehun Chanyeol (bottom), Kris (top), Kai, Luhan & Baekhyun