Denis Leary

as Diego (voice)

as Self

as Joe Baum (voice)

as Self - Guest(1 ep)

as Self - Guest(1 ep)

as Nick

as Colonel Patrick Quinn(22 eps)

as Mikey Morgan(8 eps)

as George Stacy (archive footage) (uncredited)

as Self(1 ep)

as Frank Donnelly(9 eps)

as Self

as Sean Moody Sr.(14 eps)

as Self(2 eps)

as Self - Host

as Diego (voice)

as Billy(10 eps)

as Diego (voice)

as Diego (voice)

as Rick Wilson

as Johnny Rock(20 eps)

as Diego (voice)

as Captain Stacy (uncredited)

as Vince Penn

as Self(1 ep)

as Self - Guest(2 eps)

as Self - Guest(4 eps)

as Self(1 ep)

as Himself(1 ep)

as Self

as Self (archive footage)

as Diego (voice)

as Captain Stacy

as Diego (voice)

as Diego (voice)

as Self

as Himself

as Self(3 eps)

as Self

as Diego (voice)

as Self(1 ep)

as Michael Whouley

as Self (archive footage)

as self

as Diego (voice)

as Self

as Self

as Self

as Himself

as Narrator

as Self(2 eps)

as Self(1 ep)

as Chaz (voice)(1 ep)

as Tommy Gavin(93 eps)

as Self

as Himself

as Self(1 ep)

as Self

as Self(1 ep)

as Self(1 ep)

as Self - Guest(1 ep)

as Self

as Slater

as Diego (voice)

as Douglas 'Dawg' Menford

as Self(1 ep)

as Ray Pluto

as Bill

as Mike McNeil(19 eps)

as Teddy

as Wayne

as Fireman

as Officer Fry

as Simon

as Self(1 ep)

as Det. Michael McCann

as Self / Host

as Bob Findley

as Car Mechanic (voice)(1 ep)

as Francis (voice)

as Bobby O'Grady

as Gil Mars

as Self(1 ep)

as Mr. Beal

as Doug

as Fad King

as Vinnie Franco

as Himself

as Nick

as Lono Veccio

as Self(9 eps)

as Wheelchair Man (segment "The Red Shoes")

as Jack Hanaway

as Self(10 eps)

as Self - Guest(3 eps)

as Johnny Crown / Johnny Alt

as Francis 'Frank' O'Brien

as Jake

as Self

as Frank

as Lt. David Poole

as Dennis (voice)(1 ep)

as Gus

as Fallon

as Edgar Friendly

as Self - Guest(6 eps)

as Armor O'Malley

as Sgt. Cooper

as Bill

as Himself

as Himself

as Mike McCracken

as Jake

as Denis Leary (voice)(1 ep)

as Self - Guest(2 eps)

as Newt

as Self(1 ep)