Adrien Brody to join cast of 'Peaky Blinders' in Season 4

US actor Adrien Brody

Adrien Brody will be joining the cast of the British period gangster drama "Peaky Blinders" in Season 4. 

Brody's role is being kept under wraps, but Deadline reports that creator Steven Knight wrote the part specifically with Brody in mind. 

Season 4 kicks off with Tommy receiving a mysterious letter on Christmas Eve at his country house, warning that the Peaky Blinders are in mortal danger. 

Tommy sets off for Birmingham to wage a fight for survival. 

Returning to the series are Cillian Murphy, Tom Hardy, Helen McCrory, Paul Anderson, Joe Cole, Sophie Rundle, Finn Cole, Aimee-Ffion Edwards, Kate Phillips, Natasha O'Keefe and Packy Lee.