Who was a Roman man who was forced to fight for public amusement beginning with g?

He was generally known as a gladiator. But there were different specific gladiator terms depending on the weapons and contest. For instance, a retiarius (plural retiarii was the "fisherman" gladiator as he fought with a fishing net, which was weighted, and a three-pointed trident (fuscina or tridens), and a dagger (pugio).