L.U.C.A.: The Beginning Characters

Characters played by Rae-won Kim

• Zi O

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Characters played by Lee Da-hee

• Ha Neul Ae Gu Reum

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Characters played by Kim Sung-oh

• Lee Son

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Characters played by Hyuk-kwon Park

• Kim Cheol Soo

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Characters played by Kim Sang-Ho

• Choi Jin Hwan

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Characters played by Ahn Nae-sang

• Ryu Jeung Kwon

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Characters played by Hwang Jae-Yeol

• Detective Kim Yoo Cheol

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Characters played by Jin Kyung

• Hwang Jung Ah

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Characters played by Jung Da-Eun

• Yoo Na

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Characters played by Ahn Chang-hwan

• Won Yi

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Characters played by Kim Min-Gwi

• Tae Oh

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Characters played by Oh Han-kyul

• Zi O (young)

Characters played by Han Kyu-Won

• Detective Kim Jin Soo

Characters played by Jung Eun-chae

• Ms. Jung

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Characters played by Lee Hae-Young

• Oh Jong Hwan

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Characters played by Hyeong-min Kim

• Ha Young Jae

Characters played by Seo Eun-Sol

• Gu Reum (young)

Characters played by Yong-nyeo Lee

• Sister Stella

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Characters played by Joong-ok Lee

• Hwang Shik

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Characters played by Kong Sang-Ah

• Nun at Euicheon Church

Characters played by Yoon Jong-goo

• Vengeful church member

Characters played by Ho-geun Bae

• Chief Researcher at Human Tech.

Characters played by Ga-Heun Lee

• Gu Reum's mother

Characters played by Won-jong Lee

• Kim Man Shik