Pemeran Bubblegum

Jung Ryeo Won (정려원)

as Kim Haeng Ah

Pemeran Utama

Lee Dong Wook (이동욱)

as Park Ri Hwan

Pemeran Utama

Lee Jong Hyuk

as Kang Seok Joon

Pemeran Utama

Park Hee Von

as Hong Yi Seul

Pemeran Utama

Bae Jong Ok

as Park Seon Young

Pemeran Pembantu

Kim Jung Nan

as O Se Yeong

Pemeran Pembantu

Park Won Sang

as Jo Dong Il

Pemeran Pembantu

Kim Ri Na

as Noh Tae Hee

Pemeran Pembantu

Lee Seung Jun

as Kwon Ji Hoon

Pemeran Pembantu

Lee Moon Soo

as Chef No

Pemeran Pembantu

Go Bo Gyeol

as Noh Dong Hwa

Pemeran Pembantu

Park Chul Min

as Kim Joon Hyeok

Pemeran Pembantu

Kim Sa Kwon

as Hong Jeong Woo

Pemeran Pembantu

Ahn Woo Yeon

as Ye Joon Soo

Pemeran Pembantu

Han Seo Jin

as Kim Haeng Ah [Young]

Pemeran Pembantu

Hong Eun Taek

as Park Ri Hwan [Elementary school age]

Pemeran Pembantu

Yoon Chan Young (윤찬영)

as Park Ri Hwan [Middle school age]

Pemeran Pembantu

Park Sung Geun

as Dr. Go Sang Kyu

Pemeran Pembantu

Kang Eun Ah

as Kim Haeng Ah [Young]

Pemeran Pembantu

Park Jun Gum

as [I Seul's mother]

Pemeran Pembantu

Seo Jung Yeon

as [Princess' aunt]

Pemeran Pembantu

Yang Dong Geun

as [Psychiatrist]

Bintang Tamu

Ji Ha Yoon

Bintang Tamu

Han Seo Yeon

Bintang Tamu

Alex

as [Hong Yi Seul's blind date]

Bintang Tamu

Lee Yong Yi

as [Ri Hwan's patient]

Bintang Tamu

Kim Young Ok

as [Se Yeong's mother]

Bintang Tamu

Nam Hye Seung

Composer

Park Sang Hee

Composer

Kim Byung Soo

Sutradara

Yun Ha Rim

Producer

Lee Mi Na

Screenwriter