Lieutenant Warshawski is a minor character in Power Book IV: Force.
Season 1
He blackmails Seamus Bennigan into giving him $50,000 by threatening to expose his secret about the Flynn family paying him in exchange for information. He says he is looking for a new boat in Lake Geneva. The next episode Warshawski tells Bennigan that he wants even more money and insults his sister - to which Bennigan is forced to rob the safe in Diamond's barbershop.