Billy Grade But Billy was shot by Duke for leaking the plan to kill Mosley to the IRA and setting in motion the chain of events that led to Polly's death. Billy didn't have a great season: first he garrotes his first guy, then has his knackers garroted by Jack Nelson, then he dies.
Jack Nelson violently forces Billy to act as his informant on the Peaky Blinders so he can have Arthur Shelby killed. Nelson most likely got Billy Grade's name from Laura McKee of the IRA.
Billy Grade
Shot dead by Duke Shelby for being a traitor to the Peaky Blinders and informing on Tommy's plans for the IRA.
The Black Country man served during the war with Thomas Shelby. Like Thomas, he won medals during the war and after the war was over, he threw them in the cut. He took a bullet when the Sheffield mob showed up at the Wincanton Racing Track.
8 Aberama Gold
First, Aberama lost his son to the Billy Boys, and then he began to plot the assassination of Jimmy McCavern, but before he could complete the task, Aberama was killed by the IRA.
There's a theory on the Internet that Johnny Dogs, resentful of Aberama Gold's connection to the Shelbys, is the ultimate traitor. After all, Aberama had accused him of treason before and ended up being murdered in the attempted coup.
Despite the plan being a ruse, Tommy is upset with Michael for not warning him about it, since as far as he knew, he was letting Tommy die. Michael says that he did it to protect his mother.
Realizing that Thomas won't get Michael out of prison soon enough, Polly takes the matter into her own hands. Campbell offers to release Michael the next morning but only in return for a sexual favor. Polly agrees to this deal.
Immediately afterward, Alfie disappeared; the Mafia assassins he smuggled in ultimately strangled Arthur Shelby, rather than Tommy (though Arthur secretly survived).
Will there be a Peaky Blinders season 7? Unfortunately, no, Peaky Blinders season 6 is the final season of the British drama series, but creator Steven Knight confirmed that in place of a seventh season, they're making a Peaky Blinders movie.
After Jack Nelson violently forced Billy Grade into becoming an informant for his operation, somehow Tommy found out (possibly because Billy was passing information to Gina Gray, whom Tommy had surveilled and was blackmailing over her adultery with Oswald Mosley).
Billy Grade (Emmett J Scanlan) is revealed to be the informant or 'black cat' that betrayed the Peaky Blinders. In the last season, Finn informed him that Tommy had devised a plan to kill Mosley, and it was happening that night.
Tommy is left wondering who betrayed them. Peaky Blinders' season 6 episode 5 confirmed that Billy Grade was the "black cat" who outed Tommy's assassination plan to the IRA.
From one brother to the other, Finn Shelby (Harry Kirton) is banished from the family for his role in bringing a traitor in Billy Grade (Emmett J. Scanlan) into the fold. Finn promises vengeance on Duke Shelby (Conrad Khan), Tommy's firstborn son and heir, ordering him banished by order of the Peaky Blinders.
While the other Shelbys recognize Billy as an informant, Finn does not and trusts him too much. Finn reveals Thomas' plans to Billy moments before their execution, jeopardizing the assassination, and allowing Oswald Mosley to escape.
So her absence would be felt no matter what decision was made, but ultimately, Knight shared, “the idea that Polly's alive but she's gone to America or something wasn't right.” Instead, the creator decided that killing her off was the more honorable thing to do and the death is revealed early on in the new season.
Following an unsuccessful attempt on Arthur's life and Tommy's final outmanoeuvring of Changretta, Tommy confronts Alfie for his betrayal. Alfie reveals he knew Tommy would track him down for his actions, and that he has cancer and wishes to die on his own terms.
However, it turns out that Alfie had an ulterior motive with his betrayal. He had just found out that he had cancer, and he knew Tommy would kill him before the cancer did.
Enter a visibly shaken Arthur, who Alfie greets with an enthusiastic “Arthur, Shalom!” He then apologizes to Arthur for getting him thrown in jail and praises him for “allowing Jesus into his life.” Arthur refrains from smashing Alfie's skull with a crystal ashtray despite the relative ease with which Alfie is able to ...
But where a man might have resorted to violence, in Polly's words, “we women have more sense.” The two share a civilized drink, and even a laugh or two, before Polly lays out the facts. She knows what Grace has done, and she will never, ever forgive her — even if Tommy eventually does.
Born Elizabeth Shelby, Polly was aunt to Peaky Blinders gang leader Tommy Shelby, his brothers Arthur, John and Finn, and their sister Ada Thorne.
Polly brings Ada and her son to the next family meeting and Ada tells Thomas that she forgives him, as long as he does what Polly promised.
When the bomb goes off, Michael is irked to discover that his job wasn't completed after all, and someone like Tommy doesn't die quite that easily. After one final speech-off, Tommy shoots him in the eye, ending Polly's prophecy that there'll be a war, and one of them will die.
By 1934 that "love" for Michael seems to have faded as Gina is caught by Tommy having sex with Oswald Mosley, revealing Gina to not only being unfaithful, but also calls into question whether she ever loved Michael, considering Gina's narcissistic and selfish personality.
It is revealed that Hughes molested Michael Gray when he was six years old, after he was taken from Polly and put under Hughes' care. Thus, Michael insisted that he be the one to end Hughes' life.