Twinkle Twinkle

Plot

Twinkle, Twinkle is a light, cheerful, and heartwarming family drama that tells the success story of Han Jung-won (Kim Hyun-joo), a workaholic career woman who is determined to make her own way in the world without the help of her family, which has garnered considerable wealth from their publishing company.

But what Jung-won doesn't know is that because of the hospital's negligence, she was switched at birth with another baby, Hwang Geum-ran (Lee Yu-ri). The identity swap resulted in the two girls being raised by families of different wealth and status, and living a different fate.

When Geum-ran learns the truth, she sees it as a way to reverse her poverty-stricken circumstances. But even after being restored to her rich biological parents, Geum-ran's bitterness makes her consider Jung-won her rival, and she continues to torment her. Jung-won, whose life has been turned upside down, faces numerous setbacks on the road to recovery.

Cast

Main characters

Kim Hyun-joo as Han/Hwang Jung-won

Lee Yu-ri as Hwang/Han Geum-ran

Kim Suk-hoon as Song Seung-joon

Kang Dong-ho as Kang Dae-beom

Han family

Jang Yong as Han Ji-woong

Park Jung-soo as Jin Na-hee

Kim Hyung-beom as Han Sang-won

Park Yu-hwan as Han Seo-woo

Jeon Soo-kyeong as Lee Eun-jung

Hwang family

Go Doo-shim as Lee Kwon-yang

Kil Yong-woo as Hwang Nam-bong

Lee Ah-hyun as Hwang Tae-ran

Han Ji-woo as Hwang Mi-ran

Kim Sang-ho as Park Joong-hyuk

Shin Soo-yeon as Park Ji-won

Extended cast

Kim Ji-young as Go Eun-hye

Jung Tae-woo as Yoon Seung-jae

Won Ki-joon as Jegal Joon-soo

Yoo Sa-ra as Han Song-yi

Gong Ki-tak as Song Kwang-hee

Kim Ji-seong as Team leader

Choi Su-rin as Lee Ji-soo

Im Chi-woo as Kwang-soo

Yoon Hee-seok as Nam Sung-woo

Joo Da-young as Hye-rin

Yoo Chae-yeong as Pi Ba-da (cameo)

Kim Soo-hyun