The individual who betrayed Shelby, specifically the Peaky Blinders organization led by Thomas Shelby, was Billy Grade.
The Betrayal of the Peaky Blinders
According to the provided reference, Billy Grade (portrayed by Emmett J Scanlan) was identified as the informant, also referred to as the 'black cat'. This individual was responsible for betraying the plans of the Peaky Blinders.
- The Informant's Identity: Billy Grade
- Role: Informant / 'Black Cat'
The betrayal was linked to the Peaky Blinders' plan to assassinate Oswald Mosley. The reference states that Finn Shelby, a member of the gang and Tommy's younger brother, informed Billy Grade about the plan to kill Mosley and that it was scheduled for that particular night. This information was subsequently passed on by Billy Grade, leading to the failure of the assassination attempt and exposing the plan.
Key Elements of the Betrayal
- The Plan: The Peaky Blinders intended to assassinate Oswald Mosley.
- The Leak: Finn Shelby inadvertently revealed the plan's details, including the timing, to Billy Grade.
- The Informant's Action: Billy Grade passed this critical information to the enemies of the Peaky Blinders.
- The Outcome: The assassination plot was foiled, and the Peaky Blinders faced significant consequences.
This revelation cemented Billy Grade's role as the traitor within or associated with the Peaky Blinders' inner circle.
