Frank Welker

Jennifer Hale

Jessie Bannon (voice)

J.D. Roth

Jonny Quest (voice)

Quinton Flynn

Jonny Quest (voice)

Jesse Douglas

Jessie Bannon (voice)

Michael Benyaer

Hadji Singh (voice)

Rob Paulsen

Hadji Singh (voice)

George Segal

Dr. Benton Quest (voice)

John de Lancie

Dr. Benton Quest (voice)

Robert Patrick

Race Bannon (voice)

Robert Foxworth

Race Bannon (voice)

B.J. Ward

Iris the Computer (voice)

Michael Bell

Ezekiel Rage (voice)

Ed Gilbert

Badur (voice)

Nancy Linari

Julia (voice)