Rosalind Allen
Dr. Wendy Smith
Frank Welker
voice of Darwin (voice)
Edward Kerr
Lieutenant James Brody
Kathy Evison
Lieutenant Lonnie Henderson
Michael DeLuise
Seaman Anthony Piccolo
Marco Sanchez
Sensor Chief Miguel Ortiz
Ted Raimi
Lieutenant Tim O'Neill
Don Franklin
Commander Jonathan Ford
Jonathan Brandis
Lucas Wolenczak
Roy Scheider
Captain Nathan Bridger
Peter DeLuise
Dagwood