Dr. Michael Bernardi

Curley

Billy

Adler

The General

Vic Callan (11 episodes)

Will

Commander Rocco

MC

Desmond Harnigan (1 episode)

Cuffy Meigs

Sal Sartini

Mickey Dolan (1 episode)

Lt. Andy Flynn (105 episodes)

Government Investor

Francis Garrard

Aldo Burrows (3 episodes)

Kurt Loomis (1 episode)

Detective Burroughs

Nelson Raymond

Weigart (1 episode)

Lt. Murcer

Andy Flynn (109 episodes)

Bobby Mills (1 episode)

Mike (2005) (1 episode)

Sy Magli (1 episode)

Detective Patrie (1 episode)

(2 episodes)

Niles Dunlap

Coach George (11 episodes)

John Ravich

Arthur Nagin (1 episode)

Agent Quinn

Commander Stefan Stefanopoulos (1 episode)

CAG USS Coral Sea (1 episode)

Gary

Marty

John

Maj. Gen. Thomas Sparks

(1 episode)

Peter Thornton

Ray 'Nappy' Napolitano

Victor

Poker Player

Michael Westmoreland (2 episodes)

Mr. Z

Victor Halliwell (1 episode)

Matt Taylor

Jim Reilly (10 episodes)

Augie Donatello

Dan Rayner

Andy Manola (as Anthony John Denison)

Nathan Leonard

Jimmy G.

John Gotti

Bobby (1 episode)

Jim Sheldon

Noel Guzmann

Douglas Colson

Joey Buttafuoco

Cooper Turner (2 episodes)

Welles

Rizzo

Dylan Del'Amico

Father Justin O'Carroll

Dylan Del'Amico (14 episodes)

Dylan Del'Amico

Carmine de Carlo

Barry Huntoon

Alan Matthews

James Thompson

(4 episodes)

Mike Corery (2 episodes)

Lt. Mike Corery

Ray Luca (43 episodes)

Ray Luca

Moe