Pemeran Our Happy Days

Yoon Jong Hoon

as Ko Gyeol

Pemeran Utama

Uhm Hyun Kyung

as Cho Eun Ae

Pemeran Utama

Shin Jung Yoon

as Ko Min Ho

Pemeran Utama

Yoon Da Young

as Seo Seung Ri

Pemeran Utama

Seong Byung Sook

as Park Sun Bun [Halmae Bindaetteok owner]

Pemeran Pembantu

Seo Dong Gyu

as Han Ji Hun [Lucky Joy co-CEO]

Pemeran Pembantu

Jeong Si Hyun

as Kim Seong Guk [Kangsu Construction TF2 assistant manager]

Pemeran Pembantu

Jeong Soo Ha

as Ha Yu Ju [Kangsu Construction TF1 employee]

Pemeran Pembantu

Yoon Da Hoon

as Ko Dae Chi [Gyeol and Min Ho's father]

Pemeran Pembantu

Moon Hee Kyung

as Eun Su Jeong [Gyeol and Min Ho's mother]

Pemeran Pembantu

Lee Ho Jae

as Ko Gang Su [Dae Chi's father]

Pemeran Pembantu

Jung Young Sook

as Lee Yeong Hwa [Gang Su's second wife]

Pemeran Pembantu

Kim Hye Ok

as Kang Yeon Ja [Eun Ae's mother]

Pemeran Pembantu

Sunwoo Jae Duk

as Cho Seong Jun [Eun Ae's father]

Pemeran Pembantu

Choi Sung Won

as Cho Eun Hyeong [Eun Ae's brother]

Pemeran Pembantu

Kim Na Ri

as Cho Eun Nim [Eun Ae's sister]

Pemeran Pembantu

Lee Sang Sook

as Yoo Jeong Ran [Seung Ri's mother]

Pemeran Pembantu

Jung Ho Bin

as Seo Gwan Sik [Seung Ri's father]

Pemeran Pembantu

Yoo Jin Seok

as Seo Seung U [Seung Ri's brother]

Pemeran Pembantu

Uhm Hye Soo

as Ham Cho Rong [Eun Ae's childhood friend]

Pemeran Pembantu

Ju Yong Man

as Ju Yong Man [Dae Chi's personal assistant]

Pemeran Pembantu

Kim Su A

as Cheon Ji Seon [Eun Hyeong's wife]

Pemeran Pembantu

Lee Da Eun

as Cho Bit Na [Eun Hyeong & Ji Seon's daughter]

Pemeran Pembantu

Baek Sung Hyun

as Han Su Cheol [Gyeol's biological father] (Ep. 2, 4)

Bintang Tamu

Lee Jae Sang

Sutradara

Nam Sun Hye

Screenwriter