Cameron Mitchell as Professor

Rocco Karega as Edward Thurman

Theresa Fenneaux as Maria Beniley

Ray Klein as Ike Logan

Tony Zotta as Brian Spence

Julia Westland as Kelly Adams

J. Arthur Dickinson as Lt. Digby

Duncan Larson as Bloodhound Steinfeldt

Jacquie Ward as Patricia Harper

Joey Giacomazzi as Officer Tony Drayton

Erik Moore as Tanner

Jimmy Walker as Dr. Royce Townes

Jan Gatewood as Spongy

Radford Moore Sr. as Male Officer

Lynne Murray as Man #1

Gary Burl as Man #2

Tom Peterson as Zoo Administrator

Richard Cambre as Zoo Veterinarian

Yvette Kim as Female Supervisor

Kym Smith as Bangher

Tim Foster as Whammer

Eric Daniels as Link

Marilyn Hoffman as Steinfeldt's Wife

Tom Jenson as Radio Voice (voice)

Michael Smith as 1st Detective

Ray Fejarang as 2nd Detective

William Upton as Bartender

Vickie Aleksic as Hotel Waitress

Hawthorne James as Police in Warehouse

Jay Michael Dills as Police in Warehouse

Cherilyn Milton as Police in Warehouse

G. Smokey Campbell as Police in Warehouse

Don Carrera as Police in Warehouse

Connie Williams as Police in Warehouse

Herman Yee as Police in Warehouse

Marvin Elkins as Police in Warehouse

Shelly Desai as Police in Warehouse

E. Marvin Neville as Police in Warehouse

John Thipgen as Police in Warehouse

Bill Nunn as Reporter

Ron Shinomoto as Reporter

David Nickerson as Mailman

Al Shawn Spiller as Police in Warehouse

Maryann Randl as Police in Warehouse

Marko Halowczak as Police in Warehouse

Barbara Barnes as Police in Warehouse

Roger Nikaido as Lab Personnel

Maryanita Howard as Lab Personnel

Rick Fernandez as Lab Personnel

Jim Kundig as Lab Personnel

Cynthia Burr as Woman at Home

Bebe Louie as Woman at Home

Debbie McAllister-Moore as Woman at TV

Christopher Antonio as Kid at TV

Leland Alex Smith as Kid at TV

Conrad Joseph as Kid at TV

Alycia Smith as Kid at TV

Adriana Rene as Kid at TV

Chandler Clayton as Kid at TV

Patrick Denver as Camera Crew Assistant

Sharon Brown as Screaming Woman

Timothy O'Brien as Aurora Policeman

Kelli Waldo as Female Reporter

Bill MacAllister as TV Cameraman

Diana Trawick as Voice Over (voice)

Brian Jerman as Voice Over (voice)

Mike Castellucci as Voice Over (voice)

John Fitzgerald as Voice Over (voice)

Bill Lumaye as Voice Over (voice)

Marie Bishop as Voice Over (voice)

Matt Kinnan as Voice Over (voice)

Margaret Elliott as Voice Over (voice)

Nicky Shane as Voice Over (voice)

Eric Golden as Voice Over (voice)

Kelly Fogo as Voice Over (voice)

Ken Koenig as Voice Over (voice)

Roger Schroeder as Voice Over (voice)

Paul Rawson as Clive