Charlie Logan
Larry O'Hara
Trentadue
Big Ape
Calisto (as Luigi Montefiori)
Clyde
Voyakis
Guru Shanti
Alex
Vood
Kurt Karnak
Black Burton
Stefano
Self (archive footage)
Stefano Bertoni
Lucas
Raul Morales
Crane
Carlo
Hondo
Arno Treves
MacAthos
Blackie
Tom
Gary Stevens
Jacko
Chaco
James
Goliath
Dan Caputo
Man in the office
Don Aragon
Bruno Falcone
Jeff Kluster (uncredited)
Baby Doll
Ramón / Chico
Django
McGowan - L'Irlandese
Karas
Minotauro
Simbad (as Luigi Montefiori)
Irving Wallace (mask scenes only)
Dr. Lemoir
Rocco
Jacob (archive footage)
Himself
Tulipano
Johnny Valenti / Merdiven
Golem
One
Self
Doctor George Benton
Klaus Wortmann / Antropophagus
Mikos Stenopolis
Zaccarias
Jacko (archive footage)