Michael Ironside
Captain Oliver Hudson
Jonathan Brandis
Lucas Wolenczak
Don Franklin
Commander Jonathan Ford
Michael DeLuise
Seaman Anthony Piccolo
Ted Raimi
Lieutenant Tim O'Neill
Kathy Evison
Lieutenant Lonnie Henderson
Elise Neal
Lieutenant J.J. Fredericks
Peter DeLuise
Dagwood
Frank Welker
Darwin (voice)