|Name in Japanese||山崎 烝|
|Rōmaji Translation||Yamazaki Susumu|
|Appears in||Anime, Manga, TV Drama, Stage Show|
|Voice Actor (Japanese)||Takahiro Sakurai|
|Voice Actor (English)||Chris Patton|
|Relatives||Ayumu Yamazaki (older sister)|
Susumu Yamazaki (山崎 烝 Yamazaki Susumu ) is Ayumu's younger brother. He is one of the Shinsengumi's spies, reporting directly to Hijikata. A skilled shinobi and information-gatherer, his nature emulates that of his superior's. He often cross-dresses (quite convincingly) to gather information.
- Susumu is loosely based on the historical figure, Yamazaki Susumu.