Berlin role in Money Heist was played by <a href=" removed link " target="true">Pedro Alonso.
Berlin was the man incharge of robbery inside Mint. He gave orders to others, assigned duty, gave punishment for mistakes. Only Berlin from mint talked to Professor and took orders.
The character of Berlin was of a very disciplined person who never accepted others mistakes. He was never been accepted as boss by other robbers except Helsinki & Oslo.
But while escaping from Royal Mint, Berlin showed true character of a leader. He fled all other members of his team and fought alone with cops. Ultimately He was killed by cops in last episode of second season.