Saya mau tau Pemeran dari Phantom Detective

Lee Je-hoon as Hong Gil-dong

Ko Woo-rim as Hong Gil-dong (young)

Kim Sung-kyun as Kang Sung-il

Go Ara as President Hwang

Park Geun-hyung as Kim Byung-deok

Lee Joon-hyuk as real estate agency owner

Hwang Bo-ra as used-book store woman

Byun Yo-han as Gwangeunhwe member following Hong Gil-dong (cameo)

Yoo Seung-mok as Tae-kwang auto repair shop owner

Hong Yeong Geon as Kim Jin-ho

Yoon Yeong-gyoon as Choi Tae-jeong

Lee Min-woong as Chinese restaurant employee

Park Ji-hoon as police officer 1

Park Jung-won as police officer 4