Gaius Claudius Glaber is one of the main antagonists in Spartacus: Blood and Sand and is husband of Ilithyia.
He is a Roman army legatus who is responsible for Spartacus' enslavement as a gladiator.
Glaber requested the aid of Spartacus' tribe of Thracians in return for Roman aid against their enemies. When Glaber's interests changed, the Thracians rebelled and Glaber put down the insurrection. He then sold Spartacus' wife Sura to a Syrian slave trader, and later Spartacus to the ludus of Batiatus. Many months later, after it is revealed to him that his wife murdered Licinia, the cousin of Marcus Crassus, he is forced to grant Batiatus patronage in his quest to gain political station. After the rebellion, he vows to find Spartacus and bring him to his knees. His marriage to Ilithya becomes strained, and after she's been taken by Gannicus, and thought to be dead, Glaber begins an affair with Seppia. Ilithyia returns, and saves Glaber from Seppia, who planned on killing him after she discovered he murdered her brother. Glaber and Ilithya then reunite. In the season 2 finale, Spartacus and his followers escape the mountaintop that Glaber had trapped them on, and began bombarding the temple Glaber now occupied with his own siege equipment. During the battle, Spartacus and Glaber fight once more with Spartacus finally slaying his hated foe by stabbing him through the chest, then ramming his blade down his throat.