- Christopher Connelly
- Mike Ross
- Gioia Scola
- Dr. Cathy Rollins
- Tony King
- Mohammed / Washington
- Stefano Mingardo
- Klaus Nemnez
- Ivan Rassimov
- Bill Cook
- Giancarlo Prati
- Frank
- Bruce Baron
- Crystal Skull
- George Hilton
- Prof. Peter Saunders
- Mike Monty
- George
- Michele Soavi
- James
- Adriana Giuffrè
- (as Audrey Perkins)
- Maurizio Fardo
- Larry Stoddard
- Lewis E. Ciannelli
- Oil Rig Commander
- John Vasallo
- Manuel
- Gudrun Schmeissner
- Liza
- Benedetta Fantoli
- Barbara Stoddard
- Gianni Franco
- (as Gianni Gianfranco)
- Domenico Cianfriglia
- Predator
- Ruggero Deodato
- The Colonel / Oil Rig Assistant (uncredited)
- Rocco Lerro
- Raider in Helicopter
- Benito Pacifico
- Thug at Mansion
- Gennarino Pappagalli
- Old Man at Mansion
- Angelo Ragusa
- Motorcycle Raider with Headband
- Sergio Testori
- Thug at Mansion