Onder andere met: Charles Bronson (Leo Kessler), Lisa Eilbacher (Laurie Kessler), Andrew Stevens (Paul McAnn), Gene Davis (Warren Stacy), Geoffrey Lewis (Dave Dante), Wilford Brimley (Captain Malone), Robert F. Lyons (Nathan Zager (as Robert Lyons)), Bert Williams (Mr. Johnson), Iva Lane (Bunny), Ola Ray (Ola), Kelly Preston (Doreen (as Kelly Palzis)), Cosie Costa (Dudley), Paul McCallum (Lab Technician), Jeana Keough (Karen (as Jeana Tomasina)), June Gilbert (Betty)