Male
Sung Do-hyun can be seen using the following weapons in the following films and television series:
| Character | Firearm | Notes |
|---|---|---|
| Kim | AKM | AK-74stock, "Keys and Knives" (S3E01), "It's Not Your Fault" (S3E03) |
| Kim | Type 56 assault rifle | "○△□" (S3E05) |
| Character | Firearm | Notes |
|---|---|---|
| Kim | Glock 17 | "Halloween Party" (S2E02) |
| Kim | AKM | "001" (S2E03), "O X" (S2E06) |
| Kim | Type 56 assault rifle | "Halloween Party" (S2E02) |