Paul Attanasio Creator Richard Belzer Actor Giancarlo Esposito Actor Peter Gerety Actor Clark Johnson Actor, Director Yaphet Kotto Actor, Writer Toni Lewis Actor Michael Michele Actor Kyle Secor Actor Jon Seda Actor Callie Thorne Actor Reed Diamond Guest Star Ellen McElduff Guest Star Željko Ivanek ASA Ed Danvers Guest Star Patti D'Arbanville Guest Star Ron Eldard Emmet Carey Guest Star Margo Martindale Guest Star Allison Janney Guest Star Benjamin Busch Guest Star Murphy Guyer Detective L.Z. Austin Guest Star George Hearn Independent Counsel William Dell Guest Star Barry Levinson Executive Producer Tom Fontana Executive Producer Jim Finnerty Executive Producer Sara B. Charno Writer Anya Epstein Writer Willie Reale Writer Lloyd Rose Writer James Yoshimura Writer Jay Tobias Director David Simon Writer Miguel Arteta Director Kathryn Bigelow Director Timothy Van Patten Director Edwin Sherin Director Barbara Kopple Director Keith Samples Director Joe Berlinger Director