Starz today released a trailer for its new drama series Boss. It stars Kelsey Grammer as the ruthless mayor of Chicago who is diagnosed with a degenerative mental condition that only he and his doctor know about. Observers describe the show as the former Frasier star’s Bryan Cranston/Michael Chiklis moment, a reference to Grammer’s transition from playing a lovable sitcom leading man to portraying a flawed hero on a dark cable series similar to the leap Cranston and Chiklis took with their Emmy-winning roles on Breaking Bad and The Shield, respectively.