Main •
Go Hyun-jung as Park Wan – age 37, a Japanese translation writer •
Kim Hye-ja as Jo Hee-ja – age 72 •
Na Moon-hee as Moon Jeong-ah – age 72, Hee-ja's classmate, Seok-gyun's wife •
Go Doo-shim as Jang Nan-hee – age 63, Park Wan's mother, Hee-ja and Jeong-ah's classmate and successful owner of a jjamppong shop •
Park Won-sook as Lee Young-won – age 63, Nan-hee's classmate, a former actress and advertising model •
Youn Yuh-jung as Oh Choong-nam – age 65, Nan-hee and Young-won's senior •
Joo Hyun as Lee Seong-jae – age 72, a former attorney, Hee-ja and Jeong-ah's school friend •
Kim Young-ok as Oh Ssang-boon – age 86, Nan-hee's mother •
Shin Goo as Kim Seok-gyun – age 75, Jeong-ah's husband
Extended •
Zo In-sung as Seo Yeon-ha – age 32, Park Wan's friend, Slovenia resident •
Lee Kwang-soo as Yoo Min-ho – early age 30, Hee-ja's youngest son • as Gi-ja – age 72 • as Yang Joo-young – Choong-nam's parental nephew •
Byeon Woo-seok as Son Jong-sik – Choong-nam's outside nephew •
Yeom Hye-ran as Soon-young – Jeong-ah's first daughter • Kwon Hyuk as Oh Se-oh – Jeong-ah's first son-in-law • Kang Eun-jin as Kim Ho-young – Jeong-ah's second daughter • Han Jeong-hyun as Soo-young – Jeong-ah's third daughter • Kim Jeong-hwan as Jang In-bong – Ssang-boon's son, Park Wan's uncle • as Pal-dal – Nan-hee's jjamppong shop employee • Jeong Eui-soon as Nan-hee's jjamppong shop employee •
Ji Yi-soo as Sang-sook – Nan-hee's jjamppong shop employee •
Go Bo-gyeol as Ha-neul – Hee-ja's youngest daughter-in-law •
Lee Kwang-soo as Bong-yi – Seok-gyun's elementary school alumni • Go Jin-myung as security colleague • as professor Yang • Kim Tae-hoon as professor Lee
Supporting • Joo Boo-jin as cathedral congregation member • Choi Jae-seop as Hee-ja's son • Jo Seung-yeon as Hee-ja's son •
Park Sung-yeon as Hee-ja's daughter-in-law • Park Soo-bin as Hee-ja's daughter-in-law • Kang Moon-kyung • Yoo Pil-ran • Kim Pil • Kim Hak-yim • Jo Hye-won • • •
Kim Hak-sun • Ok Joo-ri • as taxi driver • Noh Nam-seok • Kwon Jae-hyun as Soon-cheol • Lee Jeong-goo as priest • Baek Eun-kyung • Goo Bon-young • Kim Yeon-hee • Shin Shin-beom as Seok-gyun's younger brother • Kim Mi-ryang as Seok-gyun's sister-in-law • Kim Jeong-soo • Jin Seok-chan • Woo Sang-wook as young Kim Seok-gyun • as elderly nursing home care helper •
Kwon Hyuk-soo as nursing home care helper • Kim Ya-ni
Cameo appearances •
Shin Sung-woo as Han Dong-jin – early age 40, a publisher representative, an editor-in-chief •
Sung Dong-il as professor Park •
Jang Hyun-sung as Il-woo – Nan-hee's jjamppong shop regular customer •
Lee Won-jong as Jang Ho-jin – Nan-hee's father • as Yoo Jeong-cheol – Hee-ja's husband •
Daniel Henney as Mark Smith – Hee-ja's male neighbor, photographer • as Seo Yeon-hee – Yeon-ha's older sister, Slovenia resident • as Dae-cheol – Young-won's ex-husband •
Lee Soon-jae •
Kim Ji-young ==Original soundtrack==