Hi you all, just found this forum while looking for props of this great series.
Though I am a gladiatorial combat reenactor I liked the series very muich, as they at least tried a little to get the equipment right in contrast to the complete fantasy stuff Gladiator the movie portraied.
As far as the helmets they use in the series are concerned, you see clearly the mentioned Deepeeka stuff a lot in the fist two episodes.
These helmets arnt realy historicaly correct anyway, but as they are of quite thin steel or brass in contrast to the thick bronze originals they dont weight so much and a lot of Gladiator reenactors start out with these helmets.
The helmets of Solonius Gladiators are all recolored and weatherd versions of these basic helmets:
http://legvi.tripod.com/armamentarium/id121.html
To be more preciese the Murmillo had a AH6203B Gladiator III
The Hoplomachus (with the spear): had a AH6208B Thraex Helmet
And the axewielder had a Secutor AH6209B Secutor II.
In the screen cap shown here you see the same Deepeeka helmets but heavily modified.
The Murmillo helmet of Crixus is the AH6203B Gladiator III with halve of the visor grates removed to show more of the actors expression and the crest replaced with a sculpted ?Sabertooth? head.
The Thraex of Spartacus looks like a AH6207 Thracian II and has the visor similarily adapted to show more of the actors face - I guess the earlier atempt with the shots showing the face inside the helmet during fights looked to weird to be continued.
The front of the helmets ridgeline has been sheard of and bent down to meet in front of the nose and a new sculpted crest ahs been added.
As I still have an old AH6207 Thracian II (which is actually a Murmilo because of the angular crest) lying around here I might give it a try to replicate the basic look of this helmet.
BTW: I am a member of Roman Army Talk and we are actually quite friendly and civilised in pointing out inacurracies in historical gear portrait in TV and movie productions