Claflin said the upcoming season depends on Thomas Shelby.
In series five, he went from being a big fish in a small pond to being in the ocean. Seeing how little power he actually has in among the real power, against someone like Mosley, who was born into that world. Shelby was out of his league and it was really exciting to watch, so you can expect there to be more of the same."
Twitter has speculated Rowan Atkinson will be cast to play Adolf Hitler in the upcoming season.
Sam Claflin, who joined the cast in 2019 playing Oswald Mosley, admitted before joining the cast he did not know the character he is portraying.
Oswald Mosley was a fascist politician.
But Claflin was reassured to know that as a real person, Peaky Blinders creator Steven Knight wasn't going to write him out in the failed assassination attempt in season five finale.
"The best thing about getting involved as Mosley is that we know the history of him – so I knew that I'd survive! He lived a long life, so I felt protected.
"He's a very rich character with a lot to play with. I'd never heard of him before the job, but after doing a bit or researching about who this man was, it was eye-opening. So knowing what's to come in his real-life journey – it's exciting to know he's still in the Peaky Blinders world" he told Ladbible.
Filming will not start until they could ensure the safety of the cast and crew.