Jennifer Hale
Jessie Bannon (voice) (27 eps)
J.D. Roth
Jonny Quest (voice) (26 eps)
Quinton Flynn
Jonny Quest (voice) (26 eps)
Jesse Douglas
Jessie Bannon (voice) (26 eps)
Michael Benyaer
Hadji Singh (voice) (26 eps)
Rob Paulsen
Hadji Singh (voice) (26 eps)
George Segal
Dr. Benton Quest (voice) (26 eps)
John de Lancie
Dr. Benton Quest (voice) (26 eps)
Robert Patrick
Race Bannon (voice) (26 eps)
Robert Foxworth
Race Bannon (voice) (26 eps)
B.J. Ward
Iris the Computer (voice) (7 eps)
Michael Bell
Ezekiel Rage (voice) (6 eps)
Ed Gilbert
Badur (voice) (4 eps)
Nancy Linari
Neela (voice) (4 eps)
Clyde Kusatsu
Dr. Zin (voice) (4 eps)
Jim Meskimen
Havel (voice) / Conn (voice) (4 eps)
Darleen Carr
President (voice) (3 eps)
Earl Boen
Officer (voice) / Stage Coach Guard (voice) (3 eps)
Helene Udy
Julie (voice) (3 eps)
Jim Cummings
Lacey (voice) / Pirate (voice) (3 eps)
Mark Hamill
Vostok (voice) (3 eps)
Nick Jameson
Sultan Vikram (voice) (3 eps)
Chick Vennera
Walker (voice) (3 eps)
Mayim Bialik
Julia (voice) (2 eps)
Lucy Liu
Melana (voice) (2 eps)
Edward Winter
President (voice) (2 eps)
David Ackroyd
Ezekiel Rage (voice) (2 eps)
Robert Ito
President Horkarno (voice) (2 eps)
Nick Tate
Darcy (voice) (2 eps)
Dorian Harewood
Officer (voice) (2 eps)
Tara Strong
Kazrina (voice) (2 eps)
Brian Tochi
Professor Ken Otsuki (voice) (2 eps)
Kevin Michael Richardson
Computer Voice (voice) / Sentry #2 (voice) / Tech #1 (voice) (2 eps)
Dee Bradley Baker
Dr. Vedder (voice) (2 eps)
Clancy Brown
Colonel Nikolai (voice) (2 eps)
Tim Lounibos
N'Joman (voice) (2 eps)
Brock Peters
The Shaman (voice) (2 eps)
James Shigeta
Inspector Mantjur (voice) (2 eps)
Peter Renaday
High Lama (voice) (2 eps)
June Angela
Anaya (voice) (2 eps)
Tasia Valenza
Jade (voice) (2 eps)
Clive Revill
Hunter #1 (voice) / Trench (voice) (2 eps)
Maurice LaMarche
Pasha (voice) (2 eps)
Michael Horse
Eskimo (voice) (2 eps)
Carl Lumbly
Colonel William Marcus (voice) (1 eps)
Jeffrey Tambor
Black Jack Lee (voice) (1 eps)
Bruce Locke
Kumar Mukharno (voice) (1 eps)
Jeff Bennett
Gun Captain (voice) / Diver (voice) (1 eps)
Theresa Saldana
Estella (voice) (1 eps)
Thomas Gibson
Paul Mornay (voice) (1 eps)
Charles Napier
Hinkle (voice) (1 eps)
Andreas Katsulas
Stephano DePace (voice) (1 eps)
Mark L. Taylor
Brother James (voice) (1 eps)
Philip Maurice Hayes
Deke (voice) (1 eps)
Paxton Whitehead
Commander (voice) (1 eps)
Richard Libertini
Commissioner (voice) (1 eps)
Nick Chinlund
Temple (voice) (1 eps)
Greg Burson
Corbin (voice) / Sanderson (voice) (1 eps)
Julian Sands
Kreed (voice) (1 eps)
Michael Dorn
Tala (voice) (1 eps)
Peter Jurasik
Alan Zegler (voice) / Williams (voice) (1 eps)
Karen Ross
Dr. Simone Duval (voice) (1 eps)
Soon-Tek Oh
General Yala (voice) (1 eps)
Peter Strauss
Lab Guard (voice) (1 eps)
Robert Cait
Base Op (voice) / Checkpoint Guard (voice) (1 eps)
Arye Gross
Matthews (voice) (1 eps)
Dean Jones
Dr. Karel (voice) (1 eps)
George Kennedy
General Axton (voice) (1 eps)
Mari Weiss
Lady Caroline (voice) (1 eps)
Ed Asner
Von Romme (voice) (1 eps)
Jerry Doyle
Corey (voice) / Felipe (voice) (1 eps)
Harve Presnell
Doug (voice) (1 eps)
Michael Stanton
Hank (voice) (1 eps)
James Barbour
Andrew (voice) (1 eps)
Michael Carven
Arnaud (voice) (1 eps)
Troy Evans
Sgt. Kenton (voice) (1 eps)
Mary Gregory
Mrs. Adrian (voice) (1 eps)
Jennifer Lien
Elise (voice) (1 eps)
Ian Ogilvy
Dr. Smallwood (voice) (1 eps)
Nicholas Smith
Quentin (voice) (1 eps)
Sarah Douglas
Mrs. Cadbury (voice) (1 eps)
Don Reed
Ngama (voice) (1 eps)
Shari Belafonte
Diana Cruz (voice) (1 eps)
Ahmet Zappa
Policeman (voice) (1 eps)
Ric Young
Dja'Lang Mukharno (voice) / Mr. Mahasson (voice) (1 eps)
Don Harvey
Milos Duncek (voice) (1 eps)
Matthew Arkin
Petrov (voice) (1 eps)
Gregg Berger
Captain Rossanov (voice) (1 eps)
Michael Gough
Jacobi (voice) / Eric (voice) (1 eps)
Alex Dent
Indian Boy (voice) (1 eps)
Nancy Travis
Captain Spencer (voice) (1 eps)
Tristan Rogers
Hawkins (voice) (1 eps)
Charlie Adler
Rawlings (voice) (1 eps)
Lewis Arquette
Civilian (voice) / Driver (voice) (1 eps)
Carolyn Seymour
Aleutian Woman (voice) / Mother (voice) (1 eps)
Haven Hartman
Karla (voice) (1 eps)
Paul Mercier
Diver (voice) / Technician (voice) (1 eps)
Larry Moss
Skipper (voice) (1 eps)
George Ball
Announcer (voice) (1 eps)
Megan Cavanagh
Julia (voice) (1 eps)
Jan Rabson
Avary (voice) / Donaldson (voice) (1 eps)