Production began in New York last month and will premiere this summer.
To the world, Leon is a generous philanthropist, but behind his polished exterior lies dark intrigue.
Deadline understands Dinklage is playing the big baddy of the season.
Peter DinklageAmy Sussman/Getty Images
Leon will work closely alongside Charley (Uma Thurman), his head of security.
Dexter: Original Sinwill conclude its first season, 10-episode run on February 14.
