Liev Schreiber as Raymond "Ray '' Donovan. Paula Malcomson as Abby Donovan, Ray 's wife. Eddie Marsan as Terrence "Terry '' Donovan, Ray 's older brother. A former boxer, suffers from Parkinson 's disease. Dash Mihok as Brendan "Bunchy '' Donovan, Ray 's younger brother. Identifies himself as an alcoholic and a sexual anorexic. Pooch Hall as Daryll Donovan, Ray 's younger half - brother (via Mickey and Claudette). A professional boxer, trained by Terry, he also drives limos. Steven Bauer as Avi Rudin, Ray 's right - hand man. Former IDF soldier and ex-Mossad agent. Katherine Moennig as Lena Barnum, Ray 's investigative assistant. Kerris Dorsey as Bridget Donovan, Ray 's daughter. Devon Bagby as Conor Donovan, Ray 's son. Jon Voight as Mickey Donovan, Ray 's father.
who is the oldest brother in ray donovan
Terrence "Terry '' Donovan