The SIU Director is an unnamed character in Persona 5.
- Persona 5: Supporting Character
As the director of Special Investigations Unit, he leads an elite team of police and prosecutors that deal with government scandals and other huge cases. The team hasn't lost a case in fifty years. However, the director only got to his position by forging evidence in order to win cases. Goro Akechi managed to figure this out by meeting the Director's Shadow Self in the Metaverse and used it to blackmail him to cooperate with Masayoshi Shido in order to proceed with their plans of killing Shido's enemies and finding a scapegoat for their crimes.
The director appoints Sae Niijima to lead the investigation of the recent psychotic breakdown incidents and the involvement of the Phantom Thieves of Hearts, something Sae is initially honored with but later baffled of because of her relatively fresh qualifications in the department which turns out to be part of Goro's grand plot of framing the Phantom Thieves. In the end, the director will die the same way as the other victims of the mental shutdowns, likely because his Shadow Self has been slain by Goro in his own Palace. His last word is "Shi...Shid!"
After his death, a proxy director who is Shido's accomplice in the crimes involving the Metaverse is appointed to assume his post. This deputy only acts in covering up Shido's confession to his crimes who is still largely supported by the general public to assume the seat of the prime minister afterward. He also dismisses Sae from her duty temporarily because of her dedication in prosecuting Shido.
- In Japanese version, the title of the SIU Director is "Director of Special Investigation Unit of District Prosecutors Office".