- Vincent Ventresca
- Â Darien Fawkes 45 episodes, 2000-2002
- Paul Ben-Victor
- Â Robert Albert Hobbes 45 episodes, 2000-2002
- Shannon Kenny
- Â Claire Keeply / ... 45 episodes, 2000-2002
- Eddie Jones
- Â Charles Borden / ... 45 episodes, 2000-2002
- Michael McCafferty
- Â Albert Eberts / ... 34 episodes, 2000-2002
- Brandy Ledford
- Â Alex Monroe 17 episodes, 2001-2002
- Joel Bissonnette
- Â Arnaud De Fehrn / ... 9 episodes, 2000-2002
- Spencer Garrett
- Â Jarod Stark 8 episodes, 2001-2002
- Chris Eckles
- Â Lambert / ... 4 episodes, 2000-2001
- Idalis DeLeon
- Â Allianora / ... 4 episodes, 2001
- Jonathan Erickson Eisley
- Â Agent Smith / ... 4 episodes, 2001
- Alex Wexo
- Â Connor 4 episodes, 2001
- David Burke
- Â Kevin Fawkes 3 episodes, 2000-2001
- Jeremy Roberts
- Â Huiclov De Fehrn / ... 3 episodes, 2000-2001
- Joseph Kell
- Â FBI Agent Jones 3 episodes, 2000-2002
- Greg Fitzpatrick
- Â Terance Lymon / ... 3 episodes, 2001-2002
- Armin Shimerman
- Â Augustin Gaither / ... 3 episodes, 2001
- Charles DeFazio
- Â Orderly / ... 3 episodes, 2001
- David Grant Wright
- Â Joe 2 episodes, 2000-2002
- Christopher Fairbanks
- Â Bray / ... 2 episodes, 2000-2002
- Daniel Roebuck
- Â Agent Norman Miller 2 episodes, 2000-2001
- Zoe McLellan
- Â Dr. Kate Easton 2 episodes, 2000-2001
- Will Roberts
- Â Detective / ... 2 episodes, 2000-2001
- Matthew Thompson
- Â Desk Officer / ... 2 episodes, 2000-2001
- Gary Carlos Cervantes
- Â Brooks / ... 2 episodes, 2001-2002
- Robert Dahey
- Â Triad 2 episodes, 2001-2002
- Jeff Graham
- Â Marcus / ... 2 episodes, 2001-2002
- Jeff Graham
- Â Marcus / ... 2 episodes, 2001-2002
- Catherine Dent
- Â Dr. Elizabeth Rendell 2 episodes, 2001
- Gary Weeks
- Â Security Guy 2 episodes, 2001
- Jay Acovone
- Â O'Ryan 2 episodes, 2001
- Ryan Drummond
- Â Man / ... 2 episodes, 2001
- Sonya Eddy
- Â The Maid 2 episodes, 2001
- Danny Goldring
- Â SWRB Chief 2 episodes, 2001
- Hugh B. Holub
- Â Fullerton 2 episodes, 2001
- Elaine Orth
- Â Fran / ... 2 episodes, 2001
- Autumn Paul
- Â Nurse 2 episodes, 2001
- Allen Scotti
- Â Agent Smith / ... 2 episodes, 2001
- Rob Aigner
- Â Wenderlick 2 episodes, 2001
- Preston Spickler
- Â Man 2 episodes, 2001
- Priscilla Barnes
- Â Liz Morgan 1 episode, 2000
- Rebecca Chambers
- Â Casey Meyer 1 episode, 2000
- Jon Polito
- Â Eddie The Mammoth 1 episode, 2000
- Terry Nemeroff
- Â Paul Trota 1 episode, 2000
- Joel Polis
- Â John Castagnacci 1 episode, 2000
- Joel Stoffer
- Â Pete 1 episode, 2000
- Landry Allbright
- Â Jessica Semplar 1 episode, 2000
- Clare Carey
- Â Vivian Alburn 1 episode, 2000
- David Haydn-Jones
- Â Louis Price 1 episode, 2000
- Brian Tee
- Â Mallon 1 episode, 2000
- Don McManus
- Â Claude Escoffier / ... 1 episode, 2000
- Peggy Lu
- Â Doctor 1 episode, 2000
- Navid Negahban
- Â Oman Tariq 1 episode, 2000
- Robert Romanus
- Â GAO Agent 1 episode, 2000
- Obba Babatundé
- Â Allardyce 1 episode, 2000
- Michael Paul Chan
- Â Shun Lee 1 episode, 2000
- Aloma Wright
- Â Nurse Cathy 1 episode, 2000
- Nan Martin
- Â Gloria Howard 1 episode, 2000
- Frederick Coffin
- Â Charlie Fogerty 1 episode, 2000
- Steven Flynn
- Â Luke Lawson 1 episode, 2000
- Jenny Gago
- Â Mr. White 1 episode, 2000
- Josh Clark
- Â General Grimmond 1 episode, 2000
- Tucker Smallwood
- Â Anders 1 episode, 2000
- Dennis Lipscomb
- Â Dr. Mick Callahan 1 episode, 2000
- Ping Wu
- Â Diplomat #1 1 episode, 2000
- William Bassett
- Â Benjamin Scarborough 1 episode, 2000
- David Carpenter
- Â Stocky Man 1 episode, 2000
- Peter Van Norden
- Â Dr. Anthony 1 episode, 2000
- Cindy Hogan
- Â Sarah Merante 1 episode, 2000
- Adam Clark
- Â Munson 1 episode, 2000
- Paul Collins
- Â Dr. Dean Carver 1 episode, 2000
- Linda Pine
- Â Sarah 1 episode, 2000
- Douglas Roberts
- Â Farley 1 episode, 2000
- Paul Hayes
- Â Barney Gaughn 1 episode, 2000
- Kelsey Oldershaw
- Â Leila Bach 1 episode, 2000
- Georgia Emelin
- Â Ivy Anne Petersen 1 episode, 2000
- Kathleen Dennehy
- Â Scarborough's Daughter 1 episode, 2000
- Patricia Skeriotis
- Â Katrina 1 episode, 2000
- Noel Thurman
- Â Heidi 1 episode, 2000
- Jill Brown
- Â Canadian Woman 1 episode, 2000
- David Weisenberg
- Â Ingram 1 episode, 2000
- Duane Daniels
- Â Doctor 1 episode, 2000
- Warren Sweeney
- Â Homeless Man 1 episode, 2000
- Richard Penn
- Â Dr. Carter 1 episode, 2000
- Leonard Kelly-Young
- Â Stix 1 episode, 2000
- Mike Massa
- Â FBI agent 1 episode, 2000
- Denney Pierce
- Â Canadian Man 1 episode, 2000
- Jeff Garvin
- Â Justin Callum 1 episode, 2000
- Richard Kuhlman
- Â Ben Howard 1 episode, 2000
- Jack Brewer
- Â Brock 1 episode, 2000
- Dee Croxton
- Â Aunt Celia 1 episode, 2000
- Frank Ertl
- Â General Irwin McGoldrick 1 episode, 2000
- Tedd Taskey
- Â Agent Jones 1 episode, 2000
- Roy Werner
- Â Secret Agent 1 episode, 2000
- Grant Reynolds
- Â Simon Cole 1 episode, 2000
- Gina Marie
- Â Campaign Intern 1 episode, 2000
- Paul McKinney
- Â Young Exec. #1 1 episode, 2000
- Laura Richardson
- Â Neighbor 1 episode, 2000
- LeAnna Campbell
- Â Nurse Breckenridge 1 episode, 2000
- Randy Mulkey
- Â Gunman #1 1 episode, 2000
- Clint Jung
- Â Diplomat #2 1 episode, 2000
- Debbie Grattan
- Â Susan Alteri 1 episode, 2000
- Thomas W. Ashworth
- Â Zeb 1 episode, 2000
- Bonnie Brewster
- Â Judge 1 episode, 2000
- David Higlen
- Â O'Brien 1 episode, 2000
- Jack Banning
- Â Warren 1 episode, 2000
- Robert Neches
- Â Rabbi 1 episode, 2000
- Jamie Gannon
- Â Alan McGoldrick 1 episode, 2000
- Ken Garcia
- Â Policeman 1 episode, 2000
- Barry Klein
- Â Charlie 1 episode, 2000
- Janene Possell
- Â Nurse 1 episode, 2000
- Kelly Howard
- Â Nichole Givens 1 episode, 2000
- Julie Shimer
- Â Rebecca Anwick 1 episode, 2000
- Robin Stone
- Â Young Gloria 1 episode, 2000
- Bodie Newcomb
- Â Pratt 1 episode, 2000
- Tony Ketcham
- Â Cop 1 episode, 2000
- Norman Igar
- Â Man With Donuts 1 episode, 2000
- Anne Welles
- Â Linda Semplar 1 episode, 2000
- Michael S. Connolly
- Â Judge 1 episode, 2000
- Kaleb Dixon
- Â Young Darien 1 episode, 2000
- Jim Chovick
- Â Senator Marcus Miven 1 episode, 2000
- Nicholas Schneider
- Â Keith Howard 1 episode, 2000
- Michael Timmons
- Â McGoldrick's Assistant 1 episode, 2000
- Michael Sullivan
- Â Young Exec. #2 1 episode, 2000
- Greta Wasserman
- Â Security Guard 1 episode, 2000
- Nichole Givans
- Â Kelly Howard 1 episode, 2000
- R. Lewis Blake
- Â Security Guard 1 episode, 2000
- Gordon G. Lee
- Â Lead Scientist 2000-2001 1 episode, 2000
- Russell Copley
- Â Kidnapper #1 1 episode, 2000
- Drew Butler
- Â Martin 1 episode, 2000
- Aaron Buckwalter
- Â Orderly #1 1 episode, 2000
- Stephen Walters
- Â White Guard 1 episode, 2000
- Matthew Davis
- Â Billy 1 episode, 2000
- William Rowel
- Â Man #1 1 episode, 2000
- Clayton Blocker
- Â Deputy Stran 1 episode, 2000
- Kuahiwi Fernandez
- Â Agent 1 episode, 2000
- Fitz Henley
- Â Black Guard 1 episode, 2000
- William Cowart
- Â Photographer 1 episode, 2000
- Jerry Moe
- Â Lieutenant Colonel 1 episode, 2000
- Rylan Malis
- Â Young Darien 1 episode, 2000
- John Logan
- Â Young Kevin 1 episode, 2000
- Nicholas Guest
- Â Ted Stanhope 1 episode, 2001
- Wil Wheaton
- Â Dorman 1 episode, 2001
- Molly Hagan
- Â Dr. Day 1 episode, 2001
- Mark Sheppard
- Â Yuri Gregorov 1 episode, 2001
- Kim Rhodes
- Â Eleanor Stark 1 episode, 2001
- Michael Welch
- Â Adam Reese 1 episode, 2001
- Gloria Stuart
- Â Madeline Fawkes 1 episode, 2001
- Michael Harney
- Â Malachi Royce 1 episode, 2001
- Christopher Cousins
- Â Jack Carelli 1 episode, 2001
- Carlos Gómez
- Â Prime Minister Juan Carlos Arias 1 episode, 2001
- Justine Miceli
- Â Dr. Charlene Jay 1 episode, 2001
- Elya Baskin
- Â Dimitri Yevchenko 1 episode, 2001
- Christopher Allport
- Â Lawrence Odets 1 episode, 2001
- Leonard Stone
- Â Old Man 1 episode, 2001
- John Beck
- Â Forrester Purdue / ... 1 episode, 2001
- Vanessa Branch
- Â Amanda / ... 1 episode, 2001
- Gregory Cruz
- Â John Grey 1 episode, 2001
- Alan Wilder
- Â Dr. Wasser 1 episode, 2001
- Denis Forest
- Â Dante 1 episode, 2001
- Jay Paulson
- Â Jeffries 1 episode, 2001
- Christopher Neame
- Â Dr. Henrick 1 episode, 2001
- Timm Sharp
- Â Counter Guy 1 episode, 2001
- Nick Gomez
- Â Benton 1 episode, 2001
- Phil Reeves
- Â Ambassador Hallewell 1 episode, 2001
- David Knell
- Â Dennis 1 episode, 2001
- Alexander Enberg
- Â Manny Merrick 1 episode, 2001
- Kimberley Davies
- Â Elaine Lowe 1 episode, 2001
- Deron McBee
- Â Mandeville 1 episode, 2001
- Ned Romero
- Â Joseph Leaning Tree 1 episode, 2001
- Jennifer Copping
- Â Megan McGrier 1 episode, 2001
- John Fujioka
- Â Dr. Fong / ... 1 episode, 2001
- Bryan Fisher
- Â Jaimie Monger 1 episode, 2001
- Duke Stroud
- Â Doorman 1 episode, 2001
- Ivar Brogger
- Â Dr. Paul Galasyn 1 episode, 2001
- Jullian Dulce Vida
- Â Russell 1 episode, 2001
- Eddie Matthews
- Â Guard 1 episode, 2001
- François Giroday
- Â Wallace T. Gilliam 1 episode, 2001
- James Healy Jr.
- Â Dr. Garwin 1 episode, 2001
- Sammi Rotibi
- Â Jarod 1 episode, 2001
- Monica Louwerens
- Â Receptionist 1 episode, 2001
- Mel Winkler
- Â Walter 1 episode, 2001
- Reuven Bar-Yotam
- Â Ukakdropov 1 episode, 2001
- Richard Neil
- Â Michael Burton 1 episode, 2001
- Miranda Kwok
- Â Nurse 1 episode, 2001
- Bob Papenbrook
- Â Mishka 1 episode, 2001
- Franc Ross
- Â Luther 1 episode, 2001
- Bob Morrisey
- Â Paul Grant 1 episode, 2001
- Shawn-Caulin Young
- Â Mark 1 episode, 2001
- Stephen Markle
- Â Kro 1 episode, 2001
- Garrett Brawith
- Â Mason 1 episode, 2001
- CeCe Moore
- Â Waitress 1 episode, 2001
- David Hutchison
- Â Tech #1 1 episode, 2001
- Jeanne Chinn
- Â Melanie Jones 1 episode, 2001
- Jim Warne
- Â Thin Brave 1 episode, 2001
- Michael Bentt
- Â Prison Guard 1 episode, 2001
- Michael Wehrhahn
- Â Scott 1 episode, 2001
- Jocko Marcellino
- Â Cook 1 episode, 2001
- Benjamin Brown
- Â Dr. Lewicki 1 episode, 2001
- David E. Taylor
- Â Teen #1 1 episode, 2001
- Diana Cuevas
- Â Attendant 1 episode, 2001
- Spero Stamboulis
- Â Monitor Agent #2 1 episode, 2001
- Doug Mitchell
- Â Manager 1 episode, 2001
- Sonya Maddox
- Â Willard 1 episode, 2001
- Joe Nesnow
- Â Terence Sestok 1 episode, 2001
- Matt Westmore
- Â Young Man 1 episode, 2001
- Lancer Dean Shull
- Â Agent with Madeline 1 episode, 2001
- Heather Simpson
- Â Rauchman 1 episode, 2001
- Christine Harte
- Â Woman 1 episode, 2001
- Craig Tsuyumine
- Â Hito Yoshika 1 episode, 2001
- Caroline Fogarty
- Â Salesgirl 1 episode, 2001
- Kelly Felix
- Â 18 Year Old 1 episode, 2001
- Myra McWethy
- Â Nurse Doris 1 episode, 2001
- Ron Johnson
- Â Commander 1 episode, 2001
- Annie Hinton
- Â Nurse Barbara 1 episode, 2001
- Dan Cashman
- Â Dr. Halliday 1 episode, 2001
- Robert Crow
- Â Agent Silver 1 episode, 2001
- Eric Beck
- Â Abelard 1 episode, 2001
- James Whitson
- Â Sylvester Craig 1 episode, 2001
- Ben DiGregorio
- Â Tall Bald Man 1 episode, 2001
- Pamela Kay Davis
- Â Dr. Murray 1 episode, 2001
- Jonathan L. Kimble
- Â Security Guard 1 episode, 2001
- Eric Gerleman
- Â Valt 1 episode, 2001
- Darrin Long
- Â Barney 1 episode, 2001
- Brooke Battle
- Â Secretary 1 episode, 2001
- Scott Bowden
- Â Guard 1 episode, 2001
- Richard Otey
- Â Roulette Croupier 1 episode, 2001
- Kenneth Taylor
- Â Man 1 episode, 2001
- Manuela Mezzadri
- Â Emma Peel 1 episode, 2001
- Juan Urista
- Â Agent 1 episode, 2001
- Francisco C. Torres
- Â Casino Security 1 episode, 2001
- Robert Gevrekian
- Â Agent 1 episode, 2001
- Pauline Tannous
- Â French Professor 1 episode, 2001
- Randy Dare
- Â Teddy 1 episode, 2001
- Craig McAlpin
- Â Doctor 1 episode, 2001
- Wil Caceres
- Â Jail Guard 1 episode, 2001
- Sean Mclaughlin
- Â Man 1 episode, 2001
- David Madera
- Â Man 1 episode, 2001
- Nikki Winston
- Â Student 1 episode, 2001
- Timothy Manns
- Â Kid on Scooter 1 episode, 2001
- Leigh-Ann M. Danner
- Â Nurse 1 episode, 2001
- Reggie Willis
- Â Husband 1 episode, 2001
- Tristan Poje
- Â Gaither's Assistant 1 episode, 2001
- Jason Makiaris
- Â Dr. Murav 1 episode, 2001
- Chris Trent
- Â Laser Scope 1 episode, 2001
- Michelle Bush
- Â Woman 1 episode, 2001
- Hosea Simmons
- Â Cop 1 episode, 2001
- François Chau
- Â Chen Po Li 1 episode, 2002
- Joe Spano
- Â Father Tom Moore 1 episode, 2002
- Keone Young
- Â Loh Ming 1 episode, 2002
- Susie Park
- Â Mai-Lin Chong 1 episode, 2002
- Casey Biggs
- Â Shane Waring 1 episode, 2002
- Françoise Robertson
- Â Sharon 1 episode, 2002
- Daphnee Duplaix
- Â Rachel 1 episode, 2002
- Bill Blair
- Â Corpse 1 episode, 2002
- Devon Michaels
- Â Tab 1 episode, 2002
- Morocco Omari
- Â Heinrich 1 episode, 2002
- Lance E. Nichols
- Â Mayor 1 episode, 2002
- Raymond Ma
- Â Wang 1 episode, 2002
- Curtis Blanck
- Â Val 1 episode, 2002
- Luis Albert Acevedo Jr.
- Â Guard 1 episode, 2002
- Cade Courtley
- Â Burly Man 1 episode, 2002
- Tommy Lamey
- Â Ray 1 episode, 2002
- Adam Donshik
- Â MP #1 1 episode, 2002
- D. Candis Paule
- Â Agriculturalist 1 episode, 2002
- Deborah Vancelette
- Â Vera 1 episode, 2002
- Ali Costello
- Â Miranda 1 episode, 2002
- Anthony Rosselli
- Â Mobster 1 episode, 2002
- George J. Woods
- Â Old Priest 1 episode, 2002
- Anthony Mitchell
- Â Armed Guard 1 episode, 2002
- Matt Greenberg
- Â Doctor Who Examines Fawkes (uncredited) 1 episode, 2000
- Hayden rae
- Â Homeless Man (uncredited) 1 episode, 2000
- Adam Storke
- Â Prisoner in Cell (uncredited) 1 episode, 2001
- Krista West
- Â Camper (uncredited) 1 episode, 2001
- Michele Fahey
- Â Apple Throwing Girl (uncredited) 1 episode, 2001
- James Michael Kaura
- Â FBI Agent (uncredited) 1 episode, 2002