|Real name:||Peter Grogan|
|Affiliations:||Gotham City Police Department|
Peter Grogan was mentioned in the story DLC for Batman: Arkham Origins Cold, Cold Heart.
Peter Grogan was initially planned to be the Commissioner after Gillian B. Loeb was murdered on Christmas Eve by The Joker (at that time disguised as the criminal kingpin known as Black Mask). However, anonymous envelopes were supplied to various media outlets that exposed Mayor Hamilton Hill and Grogan as being extremely corrupt, including evidence that strongly implicated them as being on the payroll for the Falcone Crime Family. That, alongside similar exposure of Loeb's corrupt nature and the corrupt nature of the GCPD, resulted a lengthy protest by angry citizens that only ended on New Year's Day due to Hill's resignation, and which also permanently squashed Grogan's chances of succeeding Loeb.