Quinn Mallory
Jerry O'Connell
Rembrandt `Crying Man' Brown
Cleavant Derricks
Wade Welles / Wade Welles (voice)
Sabrina Lloyd
Prof. Maximillian Arturo
John Rhys-Davies
Guest Star
Dawnn Lewis
Guest Star
Apollonia Kotero
Guest Star
Zoe McLellan
Guest Star
Katherine LaNasa
Guest Star
Don Most
Colin Mallory
Charlie O'Connell
Guest Star
Neil Dickson
Guest Star
Phillip Van Dyke
Guest Star
Laurie Fortier
Rembrandt Brown #2 / Rembrandt
Clinton Derricks-Carroll
Guest Star
Lorin McCraley
Guest Star
Todd Babcock
Guest Star
Suzanne Mara
Maggie Beckett / Capt. Maggie Beckett
Kari Wuhrer
Guest Star
Oona Hart
Guest Star
Allen Williams
Guest Star
Michael York
Guest Star
Robert Englund
Guest Star
Corey Feldman
Guest Star
Julie St. Claire
Guest Star
Ron Melendez
Guest Star
Michelle Rene Thomas
Guest Star
Anthony Tyler Quinn
Guest Star
Tommy Chong
Guest Star
Lynn Clark
Guest Star
Rob Youngblood
Guest Star
Stephanie Niznik
Guest Star
Duff McKagan
Guest Star
Lawrence-Hilton Jacobs
Guest Star
Chase Masterson
Guest Star
Zack Ward
Guest Star
Rocco Vienhage
Guest Star
Joshua Malina
Guest Star
Kevin Quigley
Guest Star
Michael Bryan French
Guest Star
Max Grodenchik
Guest Star
David Correia
Guest Star
Victoria Mahoney
Guest Star
Frank Castrina
Guest Star
Roger Daltrey
Guest Star
R. Todd Torok
Guest Star
Kristofer Lindquist
Guest Star
Melinda Clarke
Guest Star
Don Jeffcoat
Guest Star
Bill Bolender
Guest Star
Eddie Mills
Guest Star
Marty York
Guest Star
Brigitta Dau
Guest Star
Julie Benz
Guest Star
Rodney Eastman
Elston Diggs
Lester Barrie
Guest Star
J. Karen Thomas
Guest Star
David Purdham
Guest Star
Franc Ross
Guest Star
Gregory Martin
Guest Star
Shaun Toub
Dr. Tassler / Ben Siegel III / Stu
Jay Acovone
Guest Star
Jeff Rector
Guest Star
Christian Hill
Guest Star
Neil Roberts
Guest Star
Lara Steinick
Guest Star
Warren Sweeney
Guest Star
Timothy Wiley
Guest Star
Perrey Reeves
Guest Star
Thomas G. Waites
Guest Star
Gina Philips
Guest Star
Hallie Foote
Guest Star
Deron Michael McBee
Guest Star
Rainer Grant
Guest Star
Ryan Alosio
Guest Star
Leslie Horan
Guest Star
Jacqueline Obradors
Guest Star
Tim Griffin
Dr. Diana Davis
Tembi Locke
Guest Star
Dan Gauthier
Guest Star
Brigid Brannagh
Guest Star
Zitto Kazann
Guest Star
Gregory Norman Cruz
Tess Martin
Terry Markwell
Guest Star
Jerry Rector
Guest Star
Ken Steadman
Guest Star
Deborah Kellner
Guest Star
Mari Morrow
Guest Star
J. Steven Smith
Guest Star
Pat Stewart
Guest Star
Mike Terner
Guest Star
Claudette Mink
Guest Star
Randy Vasquez
Guest Star
Fredric Lane
Guest Star
Amy Wheaton
Guest Star
Will Schaub
Guest Star
Danny Masterson
Guest Star
Kathleen McClellan
Guest Star
Mark Kiely
Guest Star
Christopher Maleki
Guest Star
Diana Castle
Guest Star
Joshua Cox
Guest Star
Robert DiTillio
Guest Star
Paul Messinger
Guest Star
Jim Turner
Guest Star
Ferdinand Caranngelo
Guest Star
Holly Claman
Guest Star
Spencer Garbett
Guest Star
Marc Riffon
Guest Star
Marc Tissot
Guest Star
Michael Woolson
Quinn Mallory
Robert Floyd
Guest Star
Collin Bernsen
Guest Star
Armando Valdes-Kennedy
Guest Star
Meadow Sisto
Guest Star
Paris Barclay
Guest Star
Sam Gifaldi
Guest Star
Jordan Blake Warkol
Guest Star
Lisa Rieffel
Guest Star
Constance Forslund
Guest Star
Ted Detwiler
Guest Star
Danny Mora
Guest Star
Michael Krawic
Guest Star
Symba Smith
Guest Star
Tom Astor
Guest Star
Wes Charles
Guest Star
Robyn Lees
Guest Star
Gordon Jennison
Guest Star
Lauri Pressler
Guest Star
Veronica Cartwright
Gomez Calhoun
Will Sasso
Guest Star
Brian McNamara
Guest Star
Michael Lee Gogin
Guest Star
Michael Houston King
Guest Star
Kenny Johnson
Guest Star
Leslie Monique Soule
Guest Star
Kristi McDaniel
Guest Star
Alton Butler
Guest Star
Taylor Leigh
Mrs. Mallory
Linda Henning
Guest Star
Kristopher Logan
Guest Star
Adam Wylie
Guest Star
Michael Des Barres
Guest Star
Judson Mills
Michael Mallory
John Walcutt
Guest Star
Gabriel Christy
Dr. Oberon Geiger
Peter Jurasik
Pavel Kurlienko
Alex Bruhanski
Michael Hurley
Gary Jones
Conrad Bennish Jr.
Jason Gaffney
Malcolm Eastman
Wes Charles Jr.