Seong Gi-hun / 'No. 456' (9 Episodes)

Hwang Jun-ho (12 Episodes)

Cho Sang-woo / 'No. 218' (9 Episodes)

Kang Sae-byeok / 'No. 067' (9 Episodes)

Oh Il-nam / 'No. 001' (9 Episodes)

Jang Deok-su / 'No. 101' (9 Episodes)

Han Mi-nyeo / 'No. 212' (9 Episodes)

Ali Abdul / 'No. 199' (9 Episodes)

Ji-young / 'No. 240' (9 Episodes)

Front Man (5 Episodes)

'No. 278' (4 Episodes)

'No. 244' (4 Episodes)

'No. 028' [Worker] (3 Episodes)

(3 Episodes)

(3 Episodes)

(3 Episodes)

(3 Episodes)

(3 Episodes)

(3 Episodes)

(3 Episodes)

(3 Episodes)

(3 Episodes)

(3 Episodes)

(3 Episodes)

(3 Episodes)

(3 Episodes)

(3 Episodes)

Gi-hoon's mother (3 Episodes)

'No. 111' (3 Episodes)

'No. 369' (3 Episodes)

'No. 069' (3 Episodes)

'No. 196' (3 Episodes)

'No. 021' (3 Episodes)

'No. 322' (3 Episodes)

'No. 062' (3 Episodes)

Gi-hoon's friend (2 Episodes)

Gi-hoon's ex-wife (2 Episodes)

Seong Ga-yeong (2 Episodes)

'No. 194' (2 Episodes)

'No. 070' (2 Episodes)

'No. 017' (2 Episodes)

'No. 453' (2 Episodes)

VIP 4 (2 Episodes)

VIP 2 (2 Episodes)

VIP 1 (2 Episodes)

Sae-byeok's brother (2 Episodes)

'No. 119' (2 Episodes)

'No. 271' (2 Episodes)

(2 Episodes)

Loan shark (1 Episodes)

Racetrack man (1 Episodes)

Dorm owner (1 Episodes)

Kim Jin Woo (Police 2) (1 Episodes)

Kim Sang Hyuk (Police 1) (1 Episodes)

Ali's wife (1 Episodes)

'No. 118' (1 Episodes)

△ Mask / Surgery Room Guard 2 (1 Episodes)

'No. 308' (1 Episodes)

'No. 096' (1 Episodes)

Flower seller (1 Episodes)

Banker (1 Episodes)

'No. 250' (1 Episodes)

'No. 107' (1 Episodes)

□ Mask (1 Episodes)

Surgery Room Guard (1 Episodes)

Ha Sun Young [Teller] (1 Episodes)

Cho Sang Woo [Young] (1 Episodes)

Seong Gi Hoon [Child] (1 Episodes)

Yoon [Emergency Medical Center doctor] (1 Episodes)

Detective (1 Episodes)

Detective (1 Episodes)

Gang member (1 Episodes)

Factory owner (1 Episodes)

Ga Yeong's brother (1 Episodes)

Fish shop customer (1 Episodes)

Ga Yeong's stepfather (1 Episodes)

Gi Hoon's friend's wife (1 Episodes)

North Korean defector shelter employee (1 Episodes)

'No. 276' (1 Episodes)

Hair Stylist (1 Episodes)

Girl in a leopard bodypaint (1 Episodes)

No. 324 (1 Episodes)