Matthew Broderick (Dr. Niko Tatopoulos)
Jean Reno (Philippe Roache)
Maria Pitillo (Audrey Timmonds)
Hank Azaria (Victor (Animal) Palotti)
Kevin Dunn (Colonel Hicks)
William O'Leary (Military Communications Guy (uncredited))
Doug Savant (Sergeant O'Neal)
Malcom Danare (Dr. Mendel Craven)
Lorry Goldman (Gene)
Michael Lerner (Mayor Ebert)
Harry Shearer (Charles Caiman)
Arabella Field (Lucy Palotti)
Vicki Lewis (Dr. Elsie Chapman)