Characters played by Joe Mantegna
Spenser
Characters played by Marcia Gay Harden
Susan Silverman
Characters played by Jon Seda
Luis DeLeon
Characters played by Luis Guzmán
Chollo
Characters played by Miguel Sandoval
Santiago
Characters played by Joanna Miles
Evans
Characters played by Daniel Parker
Father Ahearn
Characters played by Lloyd Battista
Mr. Del Rio
Characters played by Beau Starr
Chief of Detectives P. Delaney
Characters played by Janet-Laine Green
Prof Brighton
Characters played by John Bourgeois
Lt Taggert
Characters played by Yancy Butler
Lisa St. Claire
Characters played by David Ferry
Frank Belson
Characters played by R.D. Reid
Quirk
Characters played by Noam Jenkins
Woody Pontevecchio
Characters played by Maria Ricossa
Marty
Characters played by Vincent Bruni
Ruggerio
Characters played by Lorne Cardinal
Bobby Horse
Characters played by Miku Graham
Cutie
Characters played by John Healy
Uniform Cop
Characters played by Sandra Laronde
Luis DeLeon's Mother
Characters played by Tony Meyler
Cop at Hospital
Characters played by Joan H. Parker
Belson's Doctor
Characters played by Alex Restrepo
Ramon
Characters played by Liz Rodrigues
Woman with Rope
Characters played by Pedro Salvín
Gray Hair
Characters played by L.K. Vasilantonakis
Dolly
Characters played by Robert B. Parker
Sleeping Police Officer