Tom Arnold
Lt. Cmdr. Quinton McHale
Acting
Dean Stockwell
Capt. Wallace B. Binghampton
Acting
Debra Messing
Lt. Penelope Carpenter
Acting
David Alan Grier
Ensign Charles Parker
Acting
Bruce Campbell
Virgil
Acting
French Stewart
Happy
Acting
Tim Curry
Maj. Vladikov
Acting
Ernest Borgnine
Admiral Quinton McHale Sr.
Acting
Danton Stone
Gruber
Acting
Brian Haley
Christy
Acting
Henry Cho
Willie
Acting
Tommy Chong
Armando/Ernesto
Acting
Erick Avari
European Leader (uncredited)
Acting
James Hong
Asian Leader (uncredited)
Acting
Luisa Huertas
Nurse
Acting