|Associates:||Hanako, Akai, Kuroi|
|First Anime Appearance:||N/A|
|First Manga Appearance:||N/A|
|First PGSM Appearance:||Act Zero - The Birth of Sailor V|
Shiroi (white well - a pun for "white") was a live-action-only character who appeared in Act Zero as a policeman at a substation in Azabu-Juuban.
He had anemia and could not overexert himself for long periods of time. He did appear to have some precognitive abilities, as he knew where the thieves would be.
- Shiroi was played by Yoshito Endou, who also played Zoisite in the regular TV series. All four of the actors who played the Shitennou had cameo roles as police officers in Act Zero.