Different types of Roman Gladiators are :
Andabatae - Might have fought on horseback. They were protected by chainmail visored helmets with no eye holes.
Bestiarii - Fought against wild animals, using spears originally.
Bustuarii - These gladiators fought around the remains of a prominent deceased Roman, as a part of the funerary ritual
Dimachaeri - Used two daggers in combat.
Equites - Known as the knights, they began combat on horseback, then threw down their lance. They then dismounted and fought on the ground with a gladius
Essedari - Known as chariot fighters, their name comes from the Latin word for a Celtic chariot, esseda.
Hoplomachi - These gladiators were heavily armed, wearing quilted leg wrappings, a loincloth, greaves, a right arm manica, and a brimmed helmet that featured a crest of feathers along the top.
Laquerarii - Used a lasso to catch opponents. Also used a dagger.
Murmillones - This type of gladiator sported a fish in the crest of his helmet, or a mormylos, hence the origin of the name. T
Provocatores - The only gladiator to wear a breastplate, called a cardiophylax, the provacatore also wore a loincloth, a long greave on his left leg, a manica, and a helmet that sported a feather on each side.
Sagittarii - Used a bow and arrow in combat.
Retiarii - A retiarius fought naked except for a loincloth, a manica, and a galerus
Thraces - A Thracian gladiator wore similar armor as the hoplomachi. the helmet was slightly different in that a griffin was featured on the front of the crest.
Velites - This type of gladiator fought on foot, carrying a spear.