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* Na-cheol sebagai Na Soo-min, sebagai Adik Na Hyun-kyung<ref>{{cite news|url=https://entertain.naver.com/now/read?oid=468&aid=0000777375 |author= Kim Seon-woo |title=나철, '해피니스' 출연 확정…박희본과 호흡[공식]
|trans-title=|work=Sports Seoul|publisher=Naver|date=July 5, 2021|access-date=July 5, 2021|language=ko}}</ref>
* Cha Soon-bae sebagai Seon Woo-chang, pendeta<ref>{{Cite news|urlauthor=Jeong|first=Ji-eun|date=15 Juli 2021|via=Naver|title=배우 차순배, 드라마 '해피니스' 목사 선우창으로 변신!|trans-title=Actor Cha Soon-bae transformed into Pastor Seon Woo-chang in the drama 'Happiness'!|url=https://entertain.naver.com/now/read?oid=438&aid=0000037276 |authorwork= Jung Eun-eun KBS|titlelanguage=ko|access-date=15 Juli 배우 차순배, 드라마 '해피니스' 목사 선우창으로 변신!2021}}</ref>
* Yoo Ji-yeon sebagai istri Kolonel Han Tae-seok<ref>{{Cite news|author=Hyun|first=Jung-min|date=19 Juli 2021|via=Naver|title=유지연, '해피니스' 출연 확정…조우진 아내 역|trans-title=Yoo Ji-yeon confirmed to appear in 'Happiness'... Jo Woo-jin's wife|url=https://entertain.naver.com/now/read?oid=396&aid=0000587088|work=sportsworldi|language=ko|access-date=19 Juli 2021}}</ref>
|trans-title=Actor Cha Soon-bae transformed into Pastor Seon Woo-chang in the drama 'Happiness'! |work= KBS |publisher= Naver |date= July 15, 2021 |access-date= July 15, 2021 |language=ko}}</ref>
*[[Lee Joo-seung]] sebagai Andrew, karyawan perusahaan kebersihan<ref>{{Cite news|author=Lee|first=Min-ji|date=23 Juli 2021|via=Naver|title=해피니스' 이주승 출연확정. 한효주x박형식과 호흡(공식)|trans-title=Lee Joo-seung confirmed for 'Happiness'. Han Hyo-joo x Park Hyung-sik and breathing (official)|url=https://entertain.naver.com/now/read?oid=609&aid=0000471429|work=Newsen|language=ko|access-date=23 Juli 2021}}</ref>
* Yoo Ji-yeon sebagai istri Kolonel Han Tae-seok<ref>{{Cite news|url= https://entertain.naver.com/now/read?oid=396&aid=0000587088 |author= Hyung Jung-min |title= 유지연, '해피니스' 출연 확정…조우진 아내 역
*Han Jun-woo sebagai Kim Se-hoon, seorang intelektual yang tinggal dengan berkeliling dunia dengan orang tua diplomatnya<ref>{{Cite news|author=Jeong|first=Ha-eun|date=28 Juli 2020|via=Naver|title=[단독]한준우, tvN '해피니스' 캐스팅…한효주·박형식 만난다|trans-title=[Exclusive] Jun-woo Han, cast for tvN's 'Happiness'... Meet Han Hyo-joo and Park Hyung-sik|url=https://entertain.naver.com/now/read?oid=468&aid=0000780981|work=Sports Seoul|language=ko|access-date=28 Juli 2021}}</ref>
|trans-title=Yoo Ji-yeon confirmed to appear in 'Happiness'... Jo Woo-jin's wife | work=sportsworldi |publisher= Naver |date= July 19, 2021 |access-date= July 19, 2021 |language=ko}}</ref>
*[[Lee JooKang Han-seung]]sam sebagai Andrew,BJ karyawanKim perusahaan kebersihanDong-hyun<ref>{{Cite news|urlauthor= https://entertain.naver.com/now/read?oidHwang|first=609&aid=0000471429 Mi-hyeon|authordate=28 Lee Min-ji Juli 2020|via=Naver|title=해피니스신스틸러' 이주승강한샘, 출연확정.드라마 한효주x박형식과'해피니스' 호흡(공식)캐스팅…한효주와 호흡|trans-title='Scene Leestealer' Joo-seungKang confirmedHan Sam, cast for drama 'Happiness'... Breathing with Han Hyo-joo x Park Hyung-sik and breathing (official) |workurl= Newsen https://entertain.naver.com/now/read?oid=421&aid=0005508036|viawork= Naver News1|datelanguage= July 23, 2021 ko|access-date=28 July 23,Juli 2021 |language=ko}}</ref>
*Han Jun[[Bae Hae-woosun]] sebagai KimOh SeYeon-hoon,ok<ref>{{cite seorangweb|author=Ha|first=Ji-won|date=8 intelektualSeptember yang2021|title=배해선, tinggal'해피니스' dengan캐스팅…한효주·박형식과 berkeliling호흡 dunia dengan orang tua diplomatnya<ref>{{Cite news[공식입장]|url=https://entertain.naver.com/now/read?oid=468311&aid=0000780981 0001345381|authorwork=Xports Kang Young-cho News|titlelanguage=[단독]한준우, tvN '해피니스' 캐스팅…한효주·박형식 만난다 ko|trans-title=[Exclusive]Bae JunHae-woo Hansun, cast for tvN's 'Happiness'... MeetBreathing with Han Hyo-joo and Park Hyung-sik [official |work= Sports Seoul |publisher= Naver |date= July 28, 2021 position]|access-date=8 July 28,September 2021 |languagevia=koNaver}}</ref>
*[[Lee Jun-hyeok (aktor, kelahiran 1972)|Lee Jun-hyeok]] sebagai Kim Jung-kook, detektif<ref name=":2">{{Cite web |last=Lee|first=Min-ji|date=17 September 2021|title='해피니스' 한효주X박형식X조우진, 공기부터 달랐던 대본리딩 현장|url=https://n.news.naver.com/entertain/article/609/0000489817 |website=Newsen|language=ko|access-date= 2021-09-17 September 2021| websitevia= n.news.naver.com|language=koNaver}}</ref> ▼* Kang Han-sam sebagai BJ Kim Dong-hyun<ref>{{Cite news|url=https://entertain.naver.com/now/read?oid=421&aid=0005508036 |author= Hwang Mi-hyeon |title=신스틸러' 강한샘, 드라마 '해피니스' 캐스팅…한효주와 호흡|trans-title='Scene stealer' Kang Han Sam, cast for drama 'Happiness'... Breathing with Han Hyo-joo |work= News1 |publisher= Naver |date= July 28, 2021 |access-date= July 28, 2021 |language=ko}}</ref>
* [[Bae Hae-sun]] sebagai Oh Yeon-ok<ref>{{cite web|url=https://entertain.naver.com/now/read?oid=311&aid=0001345381 |author=Ha Ji-won|title=배해선, '해피니스' 캐스팅…한효주·박형식과 호흡 [공식입장]|trans-title=Bae Hae-sun, cast for 'Happiness'... Breathing with Han Hyo-joo and Park Hyung-sik [official position]|work=Xports News|via = Naver |date=September 8, 2021 |access-date= September 8, 2021 |language=ko}}</ref>
▲*[[Lee Jun-hyeok (aktor, kelahiran 1972)|Lee Jun-hyeok]] sebagai Kim Jung-kook, detektif<ref name=":2">{{Cite web|title='해피니스' 한효주X박형식X조우진, 공기부터 달랐던 대본리딩 현장|url=https://n.news.naver.com/entertain/article/609/0000489817|access-date=2021-09-17|website=n.news.naver.com|language=ko}}</ref>
*Hong Soon-chang sebagai Kim Hak-je<ref name=":2" />
*Lee Joo-sil sebagai Ji Sung-sil<ref name=":2" />
=== Penampilan khusus ===
* [[Lee Kyu-hyung]]<ref>{{Cite web|datelast=2021-06Kang|first=Hyo-jin|date=10 Juni 2021|title=[단독]이규형, '해피니스' 특별출연…신스틸러 활약 예고|url=http://www.spotvnews.co.kr/?mod=news&act=articleView&idxno=425486|access-date=2021-06-28|website=SpoTV News|language=ko|access-date=28 Juni 2021}}</ref>
== Produksi ==
Seri ini adalah proyek akting pertama [[Park Hyung-sik]] setelah menyelesaikan [[Wajib militer di Korea Selatan|wajib militer]] pada 4 Januari 2021.<ref name=":0" />
Pembacaan naskah pertama dengan para pemain dilakukan pada 7 Mei 2021 dan syuting dimulai pada 11 Mei.<ref>{{Cite web|last=Park|first=Jin-young|date=7 Mei 2021|title=한효주X박형식 '해피니스', 오늘(7일) 대본리딩…첫 삽 뜬다|url=http://joynews24.com/view/1365045|access-date=2021-06-28|website=Joy News 24|language=ko|access-date=28 Juni 2021}}</ref><ref>{{Cite web|last=Han|first=Sang-woon|date=13 Mei 2021|title=[단독]한효주X박형식X조우진 '해피니스', 11일 촬영 시작..아포칼립스의 신세계|url=https://entertain.naver.com/read?oid=112&aid=0003433001|access-date=2021-06-27|website=Naver|publisher=Herald Pop|language=ko|access-date=27 Juni 2021|via=Naver}}</ref>
==Referensi==
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