The three films are: THE TEN GLADIATORS; SPARTACUS & THE TEN GLADIATORS and TRIUMPH OF THE TEN GLADIATORS.
Uploaded to the SPECIAL FEATURES page
Dan Vadis as Rocca
Jeff Cameron (aka Giovanni Scarciofolo)
3 actors from THE TEN GLADIATORS that didn't make it in the 2 following films. Not pictured here is Aldo Cristiani.
The entire TEN GLADIATORS cast from the 2 sequels (or prequels)