Daniel Baldwin as Beau Felton

Ned Beatty as Stanley Bolander

Richard Belzer as John Munch

Andre Braugher as Frank Pembleton

Reed Diamond as Mike Kellerman

Giancarlo Esposito as Mike Giardello

Michelle Forbes as Julianna Cox

Peter Gerety as Stuart Gharty

Isabella Hofmann as Megan Russert

Zeljko Ivanek as Ed Danvers

Clark Johnson as Meldrick Lewis

Yaphet Kotto as Al Giardello

Melissa Leo as Kay Howard

Toni Lewis as Terri Stivers

Michael Michele as Rene Sheppard

Max Perlich as J.H. Brodie

Jon Polito as Steve Crosetti

Kyle Secor as Tim Bayliss

Jon Seda as Paul Falsone

Callie Thorne as Laura Ballard

Ed Begley Jr. as Victor Ehrlich

Austin Pendleton as George Griscom

Jason Priestley as Robert Hall

Eamonn Walker as Eric Thomas James

Ellen McElduff as Billie Lou Munch

Reg E. Cathey as Bernard Weeks

Walt MacPherson as Roger Gaffney

Granville Adams as Jeff Westby

Michael Ahl as Police Officer

Elizabeth Berman as Shirley

Paul M. Clary as Officer Brown

Gary D'Addario as Lt. Jasper

Richard DeAngelis as Witness #1

Lanny Flaherty as Homeless Guy

Jarvis W. George as Witness #2

Mark Joy as Nathan Steigler

Herb Levinson as Dr. Lausanne

Helen Lucaitis as Herself

Adetoro Makinde as OR Nurse

Dina Napoli as Herself

Karl Otter as Crime Lab Photographer

Rhonda Overby as Dawn Daniels

Dirk Pratt as Police Officer

Leeanna Saunders as Old Woman

Kurt Schmoke as Mayor of Baltimore (as Kurt Schmoke)

Terry Serpico as Karl Miller

Jim Simpson as Robert Gessner

Jay Spadaro as Officer Salermo

Irma St. Paule as Nonna Giardello

Ralph Tabakin as Dr. Scheiner

Brad Thoennes as News Manager

Craig Wallace as John Komen

Sean Whitesell as Eli Devilbliss

Clayton LeBouef as Colonel George Barnfather